Parvilucina costata
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Parvilucina costata| reefnet |
Posted: Mar 8 2012, 07:19 PM
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Silver Member  Group: Members Posts: 486 Member No.: 1,432 Joined: 12-January 09  |
From St. Vincent, about a quarter-inch across. Suggestions?
 Les Wilk www.reefnet.ca |
 
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| Susan J. Hewitt |
Posted: Mar 8 2012, 09:18 PM
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Bronze Member Group: Members Posts: 244 Member No.: 1,810 Joined: 22-May 11 |
Well it's a lucinid. I would think it's probably a juvenile Parvilucina costata, but I don't really know.
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| reefnet |
Posted: Mar 11 2012, 02:55 PM
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Silver Member Group: Members Posts: 486 Member No.: 1,432 Joined: 12-January 09 |
Seems like a pretty good call. Thanks.
Les |
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| Marlo |
Posted: Mar 11 2012, 06:42 PM
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 LTS Administrator Group: Admin Posts: 1,987 Member No.: 2 Joined: 12-November 05 |
If this is a juvenile and P. costata, then it'll make some dramatic sculptural changes by maturity. Who knows?
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| Susan J. Hewitt |
Posted: Mar 11 2012, 07:14 PM
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Bronze Member Group: Members Posts: 244 Member No.: 1,810 Joined: 22-May 11 |
Many lucinids look very different as small juveniles, that's one thing that makes them very tricky to ID. My suggestion is just that, a suggestion. I could be wrong. However the sculpture on the left hand side in this shot looks rather like that species.
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| Marlo |
Posted: Mar 12 2012, 04:39 AM
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LTS Administrator Group: Admin Posts: 1,987 Member No.: 2 Joined: 12-November 05 |
My first reaction was maybe Trigonulina ornata, but I've never seen one and they are reported as deep water. Ribbing also does not quite fit.
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| Susan J. Hewitt |
Posted: Mar 12 2012, 07:32 AM
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Bronze Member Group: Members Posts: 244 Member No.: 1,810 Joined: 22-May 11 |
I have found a couple of valves of Trigonulina ornata on Nevis and this is definitely not it, not even close. Plus that species is way smaller than 1/4 inch, more like 3 mm.
I am certain this is a very young juvenile lucine, and am still leaning towards Parvilucina costata. |
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