19 



5 S. elegans. 



6 S. epidromus. 



7 S. floridus. 



9 S. gigas. 

 10 S. granulatus. 

 US. Isabella. 

 12 S. leutiginosus. 



22 S. variabilis. 



X23 S. vittalus. 



Sowerby. 

 Linnaeus. 

 Lamarck. 



/ 8 S. gibberalus. Linnaeus. 



Linnasus. 

 Gray. 

 Lamarck. 

 Linnaeus. 



Swainson. 



Linnaeus. 



Burmah. 



Philippines. 



a Seychelle Islds. 



b Mauritius. 



a Philippines. 



b Port Blair, An- 

 damans. 



c Isld. of Radock. 



The Antilles. 



South Seas. 



Singapore. 



a Indian Seas. 



b , young. 



Indian Seas. 



Kingsmill Island. 



Indian Seas. 



Ceylon.* 







The Antilles. 

 Indian Seas.* 

 Red sea. 

 a Singapore. 

 b Indian Seas. 

 a Philippines. 

 b Port Blair, An- 



damans. 

 Philippines. 



Dr. Walters. 



SirW.Deuison. 



M. RobillarU 



SirW.Denison. 



Dr. Walters. 



GENUS. PTEROCERA. Lamarck, 1799. 



1 P. aurantia. Lamarck. a Ceylon. 



b , young. 



2 P. bryonia. Chemnitz. a * 



b Port Blair, An- CaptEdgcome. 

 damans. 



3 P. chiragra. Linnaeus. Ceylon. 



4 P. lambis. Indian Seas.* 



5 P. scorpius. a 



b Port Blair, An- Dr. Gamach. 

 damans. 



6 P. violacea. Cargados Island, M. Robillard. 



very rare. 



