Catalogue of Marine Mollushs. 



427 



Fig. 9. 



Fig. 8. — The same, the mantle having been removed. Same lettering as in Fig. 7. 

 a g, inferior portion of the external gill ; k, external palpus ; I, internal palpus ; m, 

 abdominal mass ; n, the foot. 



Fig. 9. — Rear cavity of the syphons 

 seen from behind ; a, posterior adductor ; 

 b, posterior folds of the mantle spread 

 out and thrown back; these folds con- 

 stitute the lateral walls of the rear cavity 

 of the syphons ; c, anal syphon ; d, bran- 

 chial syphon. 



The figures are very much magnified. — 

 Journal de Conchyliologie, vol. xi. 1863. 



I hope the remarks I have 

 made will call the attention of 

 naturalists to this subject, and 

 will induce collectors to reme- 

 dy the present existing want 



by procuring alcoholic specimens of the soft parts of the species 

 of this family, not only from America, but from other parts of 

 the world, enabling us thereby, at some future time, to arrive 

 at a classification of the Corbiculadae which shall rest upon a 

 true basis, characters drawn from an examination of both the 

 soft and hard parts of the animal. 



XLIV. — Catalogue of Marine Mollushs collected in the 

 Bahama Islands in November, 1866. 



By Henry J. Kbebs. 



{Communicated by T. Bland.) 

 Read April S, 1867. 

 (Abbreviations. N. Pr., New Providence; E., Eleuthera ; "W., Watling's Island- 

 C, Conception; A., Andros.) 



The whole group of islands which extends between the 

 twenty-first and the twenty-eighth degrees K Lat, and between 

 the seventieth and eightieth degrees W. Long., is generally 



