Hi Susan and Syada,
I checked the book "Seashells of Eastern Arabia" copyright 1995 by Bosch, Dance, Moolenneek and Oliver , which covers the area of the Arabian Sea right up next door to Pakistan. I have compared the excellent images in this book to the photos posted on the link by Syada. The shells appear to me to be Scapharca inflata (Reeve, 1844). But they also could be S. natalensis (Kraus, 1848). The former gets quite large to 150 mm, while the latter only get to 50 mm. The former has 37 ribs while the latter has somewhere between 27 to 30 ribs.
I hope this helps,
Bert Bartleson
-----Original Message-----
From: Conchologists List [mailto:[log in to unmask]] On Behalf Of Susan J. Hewitt
Sent: Sunday, February 01, 2015 8:34 AM
To: [log in to unmask]
Subject: [CONCH-L] Arcidae of Pakistan
On iNaturalist I am talking to a student from Pakistan who is currently attempting to learn to identify the various species of ark shells, Arcidae, which wash up on the beaches of Pakistan. That’s the Arabian Sea. I know very little about the Indo-Pacific fauna, so I am not much help to her.
Does anyone have suggestions for websites, publications, or books that might enable her to ID the Arcidae species she has already found?
I mean other than the Huber "Compendium of Bivalves" book, which I am certain her university cannot afford to buy!
I was also wondering if there is such a thing anywhere as a marine mollusk faunal list for somewhere in the Arabian Sea, such as West India, or maybe Oman, Yemmen, or Somalia…?
I did tell her to get in contact with the Bombay Natural History Society, in Mumbai; I thought they might be able to help.
Thanks for any suggestions.
Here are images of a few valves of one? species that she has already posted:
http://www.inaturalist.org/observations/syada
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