PUSTA. 183 



synonyms are T. cavea. Reeve (tig. 560), reported by Beau from 

 Guadeloupe, \V. I..; T. Adamsi,Do\\rn ( lig. 561), described from 

 a worn specimen; 7'. i>//l<-Jir/la. Reeve, (fig. 562); T. pisolina, 

 Lain, (tig. .")('3) ; T. ansulata, Sowb. (fig. 564); and T. histrio, 

 Reeve (lig. ;>C>5), a brilliantly colored form. 



Var. coNSAN(ii;i\KA, Reeve, fig. 566. 



Orange to brown, with a revolving row of white spots, and 

 scattered spots on the base and spire. Length, '75 inch. 



It varies considerably in the length of the spire. It is fre- 

 quently confounded, says Mr. Garrett, with T. dermestina, with 

 which it is very closely allied. 

 T. TATEI. Angas. PI. 54, fig. 567. 



Yellowish brown, with two chocolate bands. Length, 3 inches. 



So. Australia. 

 T. MICRO/ONIAS, Lam. PI. 54, figs. 568, 569. 



Dark chestnut or chocolate-brown, with a row of white spots 

 on the ribs at the periphery, forming an interrupted band or 

 necklace; sometimes an inferior narrow band. 



Length, '5-* 7 5 inch. 



West Indies ; Polynesia. 



Morch, Krebs and Swift report it from the West Indies, 

 ('inning and Garrett from Polynesia ; specimens from both local- 

 ities before me are precisely similar. The species is distinguished 

 with difficulty from varieties of T. dermestina, and will, I think, 

 prove to be S3'nonymous with it. 



T. GEMMATA, Sowb. PI. 58, fig. 688. 



Brown, usually slightly angular above the middle ; ribs distinct 

 on and above the angle, becoming obsolete below it ; angle with 



a hand of white spots. Length, 8-10 mill. 



Habitat unknown. 



Three good specimens are before me ; with the general char- 

 acter of M. microzonias,ihey have a much narrower form. 



T. I'ARDALis. Kiister. PI. 54, figs. 573-575. 



Yellowish to chocolate-brown, with an interrupted or con- 

 tinent white band composed of irregular spots; the tops of the 

 longitudinal ribs lighter in color, sometimes white. 



Length, "6 inch. 



Red Sea; Philippines; Mauritius; Polynesia, on coral reefs. 



