My primary interest is Florida micros. Those of you who collect micros in the field know just how numerous micros can be in a scoop off the bottom. I collect, freeze and examine at leisure when time permits. And, when I sort thru I don't like to see all the duplicates go to waste. So, I plop the extras in alcohol filled vials and in the past, from time to time, offered them to collectors via Conch-L. Last time (Offer of Florida Keys Micros) I referred interested collectors to LTS to make their request. Of the 15 recipients I sent the Keys Micros, six complied with my request that they provide a list of their ID's. This time, I have micro material from Pompano Hump, Cape Romano, just south of Marco Island, Florida. Since it's a fair amount of work to separate these shells (I remove animals where I can, esp. bivalves), this time I restricted my offer to the prior recipients who participated in creating the Florida Keys Micros checklist.

The following list represents the species identified by the contributors identified in the Key, below. Check back to this post as it'll be used as a MASTER LIST of everyone's ID's with updates, corrections and added images. This list is moderated by Marlo and the comments in blue are his. Post your ID's and they'll be added to this MASTER LIST. Where there have been recent changes in genus names the older name has been included in parenthesis to aid recognition. Some of the ID names have been hot-linked to images of the same name on the web. Unless specifically identified as one of the Cape Romano shells, none of the images are of the actual shells from the Cape Romano lot. These links are meant only to facilitate IDs

Key: D = doubtful; GW = ID by gwatters; DT = Dan Teven; LT = carolinasheller; SS = Scotto; WW = Albatrosswtw; MK = Marlo Krisberg; HC = Herb Chapin

Updated 10-2-06

Acteocina canaliculata (GW; DT; LT; SS; HC; MK)
Acteocina candei (WW) Compare to canaliculata; esp. the protoconch. Candei is usually a deep water species.
Acteon punctostriatus (WW)
Astyris lunata (GW; DT; SS; WW; HC; MK)
Boonea impressa (MK)
Boonea seminuda (GW; SS; MK)
Busycotypus spiratum (WW)
Cerithiopsis sp. (SS)
Cerithium muscarum (GW; DT; LT; SS; WW; HC; MK)
Crepidula maculosa (LT; SS; WW; MK)
Crepidula cf. maculosa (GW; DT; HC)
Creipidula sp. (SS)
Epitonium sp. aff. albidum (MK)
Eulithidium pterocladicum (MK)
Eupleura sulcidentata (SS; MK)
Fasciolaria hunteria (SS; MK)
Gibberula lavalleeana (DT; SS; WW)
Gibberula sp (Redfern 471) (GW; MK)
Granulina hadria? ovuliformis? (GW; DT; SS; WW; HC; MK)
Haminoea antillarum (MK)
Jaspidella blanesi (SS) D, See posts below related to Olivella perplexa and acteocina
Melanella jamaicensis (MK)
Modulus modulus (MK)
Nassarius vibex (GW; DT; LT; SS; WW; HC; MK)
Odostomia acutidens (MK)
Olivella acteocina (GW; LT) Probably perplexa, see below posts.
Olivella floralia (SS; HC) D, floralia is white, and there are those among us who believe floralia does not occur in Florida, but that we have a different species sometimes with some dark color below the sutures, which can make the teleoconch appear dark, or with dark streaks.
Olivella inusta (MK; DT)
Olivella mutica (GW; LT; WW)
Olivella perplexa (DT; SS; WW; HC; MK)
Olivella pusilla (DT; WW; HC; MK; SS) Wayne may be the only one who's gotten this correct. I suspect what we all think is mutica becaue of the small size are juvenile pusilla. I sent images to Harry Lee and that was his opinion. I'll send him some shells for a closer look. Harry has since confirmed all as O. pusilla.
Parvanachis obesa (DT; WW; HC; MK)
Prunum apicinum (GW; DT; LT; SS; WW; HC; MK)
Rictaxis punctostriatus (GW; SS; HC; MK)
Rissoina striatocostatus (SS)
Schwartziella catesbyana (MK)
Tectonatica pusilla (WW; MK)
Terebra dislocata (GW; SS; MK)
Terebra protexta (MK)
Turbonilla conradi (MK)
Turbonilla (Chemnitzia) hemphilli (MK)
Turbonilla incisa (MK)

BIVALVES
Abra aequalis (GW; DT; LT; SS; WW; HC; MK)
Amygdalum papyrium (MK)
Anadara transversa (DT; WW; MK)
Anamalocardia auberiana (HC; MK)
Arcopsis adamsi (WW) If correct, this would be a real surprise for the habitat. Albatrosswtw changed the ID to Anadara transversa - see his post of Aug 21, below.
Argopecten gibbus (MK)
Barbatia tenera (GW; DT)
Chione elevata(GW; DT; LT; SS; WW; HC; MK) elevata replaces cancellata
Chione latilirata (DT)
Corbula swiftiana (WW) Considered by some to be a synonym for Corbula caribaea.
Corbula caribaea (MK) I'll bet one of these Corbula IDs is wrong, but I'm not sure which.
Corbula contracta (WW)
Corbula dietziana (MK)
Crassinella martinicensis (WW)
Cumingia vanhyningi (GW; MK) I presume this is Abbott's #5799 referred to as Cumingia tellinoides vanhyningi (#5799)
Dinocardium robustum (MK)
Entodesma beana (HC)
Glans dominguensis (DT)
Gouldia cerina (GW)
Laevicardium mortoni More images. (GW; DT; SS; WW; HC; MK)
Laevicardium sybariticum (DT; LT; SS)
Lioberus casteneus (DT; WW; MK)
Lucinisca nassula (MK)
Lyonsia hyalina (MK) More images.
Lyonsia hyalina floridana (DT; WW) Could be, but compare to hyalina
Macoma tenta (GW)
Macrocallista nimbosa (MK)
Mactra fragilis (WW)
Mulinia lateralis (MK)
Noetia ponderosa (DT; LT; SS)
Nucula aegeensis (GW)
Nucula proxima (DT; LT; SS; WW; HC; MK) More images.
Nuculana acuta (GW; DT; LT; SS; WW; HC; MK)
Papyridea soleniformis (DT)
Parastarte triquetra (MK)
Parvilucina amianta (MK)
Petricola lapicida (WW)
Pitar fulminatus (HC)
Semele proficua (WW; MK) Detailed description
Semele purpurascens (MK)
Sphenia antillensis (GW; SS; WW; MK)
Spisula raveneli (HC; MK)
Tellina versicolor (GW; DT; LT; SS; WW; HC; MK)
Tellina sp. (transparent) (HC)
Timoclea grus (GW; DT; WW; HC; MK)
Trachycardium muricatum (MK)

Here's my list of Marlo's micros from The Pompano Hump:

Abra aequalis
Acteocina canaliculata
Astyris lunata
Barbatia tenera
Boonea seminuda
Cerithium muscarum
Chione elevata
Chione grus
Crepidula cf. maculata
Cumingia vanhyningi
Gibberula sp (Redfern 471)
Gouldia cerina
Granulina hadria? ovuliformis?
Laevicardium mortoni
Macoma tenta
Nassarius vibex
Nucula aegeensis
Nuculana acuta
Olivella acteocina
Olivella mutica
Prunum apicinum
Rictaxis punctostriatus
Sphenia antillensis
Tellina versicolor
Terebra dislocata

Thanks! GTW

Tom,

Thanks for such a prompt list. Please take another look at the Olivellas. I'm certain there are pusilla, perplexa and inusta. Here's an image of the perplexa from the lot.

Here are my bivalve IDs; gastropods to follow.

Nucula proxima Say
Nuculana acuta Conrad
Noetia ponderosa Say (juv.)
Anadara transversa Say (juv.)
Barbatia tenera C. B. Adams
Lioberus castaneus Say
Glans dominguensis Orbigny
Papyridea soleniformis Bruguiere (juv.)
Laevicardium sybariticum Dall
Laevicardium mortoni Conrad
Tellina versicolor DeKay
Chione grus Holmes
Chione cancellata L. (juv.)
Chione latilirata Conrad (juv.)
Abra aequalis Say
Lyonsia hyalina floridana Conrad (juv.)

Here are my gastropod IDs.

Acteocina canaliculata
Astyris lunata
Cerithium muscarum
Crepidula cf. maculata
Granulina sp. (only one; undoubtedly what you have)
Marginella (Gibberula) lavalleeana
Nassarius vibex
Olivella sp x3 (pusilla, perplexa, mutica?)
Parvanachis obesa
Prunum apicinum

The Olivellas are problematic because I don't have a good reference; or rather, I have several and they all seem to contradict each other. I have worked through them -- correcting some perplexa in my collection that I had misidentified as Jaspidella blanesi! -- and now I agree with Marlo about pusilla and perplexa (pusilla being much commoner in this sample).

I am still working on one specimen, which appears to be another Dactylidia, probably mutica. It is missing the dark bands (of the pusillas from this sample) and has axial zigzags. I suppose it could be another color form of pusilla. I don't think it's inusta.

Yes, this the species I called Olivella acteocina. But it matches Redfield's photo. What are the differences between acteocina and perplexa? I would have a second look at specimens listed as Lyonsia vs. Sphenia. I have specimens of Sphenia from Cedar Key as well.

GTW

Tom, I do not have any O. acteocina to analyze for comparison. I am relying upon the following:

Abbott does not place acteocina in Florida, rather the Bahamas to Panama. Mollusks, 2nd ed. does not include acteocina as occuring in the USA. Considering the various specimens I've collected around Florida and reviewing Redfern's notes, I'd say the adult perplexa is consistently smaller (protoconch plus three whorls as compared to acteocina's five whorls). Unfortunately, this is not one Colin photographed live.

marlo

I have only one of the Lyonsia; could be Sphenia antillensis but I didn't think it ranged this far north. Cedar Key? Are you confident of the ID?

Here is my Pompano Hump ID list.

I went to that same area and screened for micros about 10 years ago, and Marlo did quite well compared to the little amount of shells I brought back from there.

Univalves:

Acteocina canaliculata
Astyris lunata
Boonea seminuda
Cerithium muscarum
Cerithiopsis sp. (old, worn)
Crepidula maculosa
Crepidula sp.
Eupleura sulcidentada (juv.)
Fasciolaria hunteria (juv.)
Gibberula lavaaleana
Granulina hadria (I think, no live animal to compare it to)
Jaspidella blanesi
Nassarius vibex
Olivella perplexa
Olivella mutica
Olivella floralia (pretty sure, very dark though)
Prunum apicinum
Rictaxis punctostriatus
Rissoina striatocostata
Terebra dislocata

Bivalves:

Abra equalis
Chione elevata
Laevicardium mortoni
Laevicardium sybariticum
Noetia ponderosa
Nucula proxima
Nuculana acuta
Sphenia antillensis (this was a surprise)
Tellina versicolor
and a couple very immature that I'm sure are previously mentioned

Thanks to Marlo for the vial and the opportunity to check them out, sorry for the late ID list posting.

Here is my list from the last micros from Marlo. I am sorry that it took me so long to post but the Postal System took 15 days for me to get my mail from Marlo. The last numbers after the author is the number of specimens of each. This may be a duplicate posting because I think I hit the wrong button. Wayne T. Wilson

Univalve
Acteocina candei Orbigny 1842 – 5
Acteon punctostriatus CBAdams 1840 - 5
Anachis obesa CB Adams 1845 - 1
Astyris lunata Say 1826 – 7
Busycon spiratum Lamarck 1816 – 1 juv
Cerithium muscarium Say 1832 - 1
Crepidula maculosa Conrad 1846 – 2
Granulina ovuliformis Orbigny 1841 - 1
Marginella apicina Menke 1828 – 7
Marginella lavalleana Orbigny 1842 - 11
Nassarius vibex Say 1822 – 3
Olivella mutica Say 1822 -30
Olivella perplex Olsson 1956 - 8
Olivella pusilla Marrat 1871 – 7
Tectonatica pusilla Say 1822 – 1
Bivalve
Tellina versicolor DeKay 1843 – 27
Abra aequalis Say 1822 - 10
Anadara transversa Say 1822 -4
Chione cancellata Linné 1758 – 9
Chione grus Holmes 1858 - 2
Corbula contracta Say 1822 - 1
Corbula swiftiana CBAdams 1852 – 1
Crassinella martinicensis Orbigny 1842 - 1
Laevicardium mortoni Conrad 1830 – 3
Lioberus castaneus Say 1822 - 1
Lyonsia floridana Conrad 1849 – 2.5
Mactra fragilis Gmelin 1791 - 1
Nucula proxima Say 1822 - 18
Nuculana accuta Conrad 1831 – 13
Petricola lapicida Gmelin 1791 – 1
Sphenia antillensis Dall&Simpson 1901 – 3

Hi Folks,,,,

here is my list of micros that I received. I'm still working on the id of one bivalve ( a transparent tellina) and 1 gastropod. The rest are listed below to the best of my ID capabilities.

Nuculana acuta
Tellina versicolor
Abra aequalis
Prunum apicinum
Olivella mutica
Olivella acteocina
Nucula proxima
Noetia ponderosa ( ? this is a very juvenile specimen )
Laevicardium sybariticum ( I dont think this specimen is L. mortoni )
Nassarius vibex
Acteocina canaliculata
Crepidula maculosa ( very juvenile specimen )
Chione elevata ( do the juvenile specimens have equal # of ribs as adult? )
Cerithium muscarum ( tho could be atratum, it's juvenile )


Lyle

We have Lyonsia floridana confirmed from the Goodland area and Lyonsia hyalina from Cedar Key. The two are distinctively different, esp. when compared side-by-side.

We do not have Sphenia antillensis confirmed from either location (I have not gone thru my Pompano Hump material yet.)

I'll take some comparison images if you'd like later this week. 8/27: See post below with images.

marlo

I have taken a good look at the arks in my sample and due to the fact that they were so small...3-4mm and cancellate I assumed that they were Arcopsis adamsi but I carefully opened one and found that the inner margin were not smooth. Also being small the ligament appeared to be limited but I took a closer look at the largest one and can see that the ligament is not triangular but more elongated. I therefore see that they are very immature specimens of Andara transversa. I have edited my list to remove adamsi from my sample. The small shells do show a good amount of cancellate ribbing though. I should have studied the little buggers more carefully. Thanks for Marlo's input, Wayne T. Wilson

Marlo: Belatedly, here is my list from your Cape Romano micros:

Gastropods:

Acteocina canaliculata, (Say, 1826) - 4
Astyris lunata, (Say, 1826) - 6
Cerithium muscarum, Say, 1832 - 1
Crepidula maculosa, Conrad, 1846 - 2
Granulina sp. - 5
Nassarius vibex, (Say, 1822) - 2
Olivella floralia, (Duclos, 1853) - 3
Olivella perplexa, Olsson, 1956 - 3
Olivella pusilla, (Marrat, 1871) - 21
Parvanachis obesa, (C. B. Adams, 1845) - 1
Prunum apicinum, (Menke, 1828) - 4
Rictaxis punctostriatus, (C. B. Adams, 1840) - 4

Bivalves:

Abra aequalis, (Say, 1822) - 9
Anamalocardia auberiana (d'Orbigny, 1842) - 1
Chione elevata, (Say, 1822) - 5
Entodesma beana, (d'Orbigny, 1842) - 1
Laevicardium mortoni, (Conrad, 1830) - 2
Nuculana acuta, (Conrad, 1832) - 6
Nuculana proxima, Say, 1822 - 22
Pitar fulminatus, (Menke, 1828) - 1
Spisuli raveneli, (Conrad, 1831) - 1
Tellina versicolor, DeKay, 1843 - 6
Tellina sp. (transparent) - 10
Timoclea grus, (Holmes, 1858) - 3

Sorry about the delay in posting. Our footers finally got poured late last week, and we're finally seeing things begin to take shape. I'm just as unsure about some of these as have been several others, but this is my best shot.

Herb Chapin
--

I will suggest that after Marlo goes thru his material, if he cannot confirm the presence of S. antillensis, that I and others who have ID'd these specimens return them to Marlo for his scrutiny.

I consider Marlo to be far more accurate at micro ID's than myself.

I've looked through the bivalves and separated out the Lysonia and Sphenia.

I found Lysonia hyalina (no floridana - Click here to compare the two).



I also found Sphenia antillensis.

Yep, mine is Lyonsia, though it's a small one and the sand grains were almost all gone. We have Lyonsia hyalina up here in Massachusetts.

Thanks to Marlo's excellent pictures I'm now persuaded that my third Olivella sp. is indeed inusta.

I've added my ID's to the master list and several more image links. Still a few to go.

marlo

I've updated the list to reflect that Dr. Harry Lee has confirmed that in his opinion all the non-Olivella perplexa and inusta that we thought might be either pusilla or mutica are indeed O. pusilla. See images of variations examined by D. Lee.