.tOl'KNAI. OK CONCIIOLOCV, VOL. 9, No. 2. AIKII, 1S98. 44 



Aquillus (Lotorium) lotorium L. A common Ccyloncsc 

 species. Red Sea, Indian Ocean, Philippines, CL-ntral Polynesia. 



Aquillus (Simpulum) aquatilis Kv.* One, c.\ce.;dingly fine 



and well marked. Loyalty Islands. 



Aquillus (Lotorium) retusus Lm.— Some typical specimens. 

 Indian Ocean, Mauritius. 



Aquillus (Lotorium) tripus Chemn.— Small, well-marked speci- 

 mens. Indian Ocean, China. 



Distortrix cancellinus Roissy.— One specimen. Ceylon, China, 

 Philippines, St. Thomas and other West Indian Islands, Monte 

 Christi and Xipixapi, West Columbia. 



Gyrineum' crumena Lm.— Many examples, oi ordinary form. 

 Ceylon, Philippmes. 



Gyrineum ( Bursa ) margaritula Dh. — Typical examples. 

 Indian Ocean. 



Gyrineum (Bursa) spinosa Lm.*— A large number of speci- 

 mens, in all stages of growth, with opercula. Red Sea, Indian Ocean, 

 Philippines, Mauritius. 



Gyrineum (Lampas) affinis Brod. — Several, quite typical. 

 Philippines, Loyalty Islands, Samoa, West Indies. 



Gyrineum (Apollon) tuberculata Brod.* — Medium sized 

 specimens. Indian Ocean, Red Sea, China, Malacca, Manila, Tahiti. 



Family CASSIDID^. 



Cassis (Semicassis) canaliculata Lm. — Several examples. 

 Ceylon, Philippines. 



Cassis (Semicassis) sulcosa Brug — Not quite typical ; our 

 examples agreeing very well with C. laidulata Gm., which Tryon con- 

 siders a variety only. Mediterranean, Portugal, West Coast of Africa, 

 West Indies, Brazil, West Coast of North America from Panama to 

 Guaymas. 



Cassis (Phalium) areola L.— Two good specimens. Indian 

 Ocean, Malacca, Philippines, New South Wales. 



Famiia' DOLIWAi. 



Dolium chinense Dillw. {—D. variegatum Lm. var.)— China, 

 North Australia. 



Dolium costatum Mke. — Of ordinary form. East Indies, 

 Philippines, Mauritius. 



Dolium fasciatum Brug.— One only, with unusually fine varix. 

 Philippines, China, Japan. 



I The well-known name Ranclla Lm. (1812) is superseded by Gyrhuum Link (1807) and 

 Bufo Moiufort (1810). 



