163 



to offer decided features, and becomes a valuable aid in the 

 diagnosis. 



Straits of Malacca ; in seventeen fathoms among mud. 



35. T. SPECILLATA. (pi, xliv. f. 96. pi. xlv. f. 116.) Hinds, 

 1. c.p. 155. 



Testa gracile turrito-subulata, valde acuminata, alba, rufo 

 sparsim maculata et nebulosa ; anfractibus subplanulatis 

 longitrorsum subdistanter tenue plico-costatis, transversim 

 leeviter striatis, superne cingulo tuberculato, interstitiis tuber- 

 culorum preecipue pictis ; anfractu ultimo fasciato ; apertura 

 parva ; columella subrecta. 



The spire is attenuated and acuminate, of a dead white 

 irregularly clouded with brown, but much more intense among 

 the series of tubercles; the folds are distant, not very 

 prominent, and nearly straight. Aperture attenuated, and 

 terminating in a canal. 



San Bias, Mexico ; in seven fathoms, sandy mud. 



36. T. CONSPERSA. (pi. xliv. f. 74.) Hinds, 1. c. p. 153. 

 Testa turrito-subulata, nitida, alba ; anfractibus subrotun- 



datis, plico-costatis, superne linea impressa, preecijiue inter- 

 stitial!, cinctis, prope suturam punctis rufis raro conspersis, 

 interstitiis striatis ; anfractu ultimo ad basin fulvo ; columella 

 nuda, contorta. 



A pretty little species, only known to me through the two 

 specimens in the collection of Mr. Cuming; and it will 

 readily be distinguished by its sparsely scattered rufous spots 

 and orange base. 



Catbalonga, Island of Samar, Philippines ; eight fathoms, 

 sandy mud : Cuming. 



37. T. VARicosA. Hinds,\. c.^.\52. 



Testa elongate conico-subulata, acuminata, nitida ; 

 anfractibus subplanulatis, plico-costatis, superne cin- 

 gulo tuberculato contracto cinctis ; costis subdistan- 

 tibus, albidis, interstitiis striatis fuscis : anfractu 

 ultimo breviusculo, rotundato, albo, fasciato; co- 

 lumella contorta. 



Gulf of Papagayo, west coast of Central Ame- 

 rica ; in twenty-three fathoms, mud. 



38. T. FRiGATA. (pi. xliv. f. 7l.) Hinds, 1. c. p. 162. T. 

 gracilis. Gray, 1. c. p. 61. 



Testa elongate conico-suljulata, acuminata, turrita, polita, 

 nitida, pallida ; anfractibus planulatis, superne linea impressa 

 divisis, plicatis, interstitiis striatis ; area superiore tuberculis 



s 



