H. Mollusca. 



Ad., clypeolum Recluz , RecluziiRvQ., ambigua Recluz, atra Rve. , radiata Rve. r 

 pulchella Rve., imignis Rve. zu tesselata Lam. 



a) Trochidae. 



Turbininae. 



Leptothyra Mighels. 



L. albida Ball ( 79 ) in Bull. Mus. Cambridge Vol. 9. p. 48, aus dem Antillenmeer. 



Turbo (Leptothyra) Cunninghami Smith bei Martens ( 316 ) in Sitzungsber. Ges. naturf. 



Fr. p. 78, von der MagelhaensstraBe. 

 Collonia Gray. 

 C. Cunninghami Smith ( 283 ) in Proc. Zool. Soc. 1SS1. p. 33. pi. 4. Fig. 10. lOo, 



from South-Patagonia. 



b) Liotiinae. 



Adeorbis Wood. - - Ad. fmbriatus Mar ten s ( 215 ) in Sitzungsber. Ges. naturf. Fr. 

 p. 64, von Neu-Guinea in 400 Faden von der Gazelle gedrakt. 



c) Rotellinae. 

 Solar iella Wood. 



S. turritellina Ancey ( 4 ) in le Naturaliste Vol. 3. Nr. 49. p. 390, von Sumatra. 



d) Trochinae. 

 Trochns L. 



Tr. (Subff?) laevissimns Martens ( 215 ) in Sitzungsber. Ges. naturf. Fr. p. 65, von 

 Sttd-Afrika. 



Aphanotrochus Marten s wircl vom Autor selbst fiir synonym mit dem alteren Prio- 

 trochus Fischer erklart. 



Margarita Leach. 



Marg. asperrima Ball ( 79 ) in Bull. Mus. Cambridge Vol. 9. p. 40; scabriuscula, 

 lissocona , ibid. p. 41 ; jilogyra, (Turcicula) imperialis , ibid. p. 42, iris, maculata, 

 ibid. p. 43, lubrica, ? euspira, ibid. p. 44, sanimtlich vom Schoner Blake im An- 

 tillenmeer in verschiedenen Tiefen gedrakt. 



Trochus \Margarita] nttdhtsculus Martens ( 21G ) in Sitzungsber. Ges. naturf. Fr. 

 p. 77, von Ost-Patagonien. 



Callogaza B all ( 79 ) n.gen. in Bull. Mus. Cornp. Zool. Vol. 9. p. 49. Shell resembling- 

 Gaza Wats., but with the umbilical pad reflected only partly over the umbilicus; 

 the pillar straight, passing without notch or mucronatiou into the reflected basal 

 margin of the aperture ; nacreous layer in this shell covered with a thin non- 

 nacreous layer, which, in its turn, appears to be covered by a delicate epidermis. 



C. superba Dal 1 ibid. p. 49 and C. Watsoni, ibid. p. 50, from the Caribean Sea. 



Microgaza Ball () n. subg. in Bull. Mus. Comp. Zool. Vol. 9. p. 50. Shell flattened 

 rotelliform, resembling a Gaza without reflected lip or umbilical callus, brilliantly 

 nacreous when fresh, and having a distinctly scalariform umbilicus. 



Micr. rotella Da 11 ibid. p. 51, from the Caribean Sea. 



Seguenzia Jeffreys. 



Seg. delicatula Ball ( 7U ) in Bull. Mus. Cambridge Vol. 9. p. 48, aus dem Antillen- 

 meer bei 800 Faden. 



Calliostoma Swainson. 



C. circumcinctum Ball ( 79 ) in Bull. Mus. Cambridge Vol. 9. p. 44, roseolum , ibid, 

 p. 45, apicinum, sapidum, ibid. p. 46, Yucatecanum, echinatum, ibid. p. 47, sammt- 

 lich aus dein Antillenmeer. 



C. psyche Ball, in dem Prel. Rep. Blake nur genaunt, muC den alteren Namen C. 



