GENERA AND SPECIES. 14! 



169. megotara, sheath 6 in. pallets oval, outside front cuneiform and 



excavated. 



170. malleolus, sheath 3 in. pallets short with a broad blade. 



171. bipinnata, sheath 3 in. pallets with funnel joints. 



Testacella. (TESTACELLTDM.) Plate xviii. 



230. haliotidea, ^ in. shell ear-shaped, animal yellowish brown 



231. inaugei, 



with spots. 

 in. shell cylindrical, animal dark brown. 



Thecacera. (POLYCERlDjE.} Plate xxxiii. 



607. pennigera, $ in. white, blotched with black and orange. 



virescens, $ in. pale pink, blotched with green. 



capitata, % in. white, spotted with greenish brown. 



Thracia. (ANATINIDM.) Plate xv. 



174. prtf tennis, ij in. x in. white, anterior margin semicircular. 



175. papyracea, i in. x & in. white, anterior margin gently curved. 



176. pubescens, 3 in. x 2 in. sandy, anterior margin gently curved. 



177. convexa, 2$ in. x 2 in. pale brown, margin indented on posterior 



side, beaks inflected to posterior side, inside 

 yellowish. 



178. distoi-ta, f in. x T 9 5 in. white, posterior half angulated and generally 



longer than anterior, beaks inflected to 

 posterior side, inside cream colour. 



Torellia. (TRICHOTROPID^E.) Plate xxiii. 

 381. vestita, in. white, whorls 5 or 6, rapidly increasing in 



Tornatinus. (TORN AT IN ID &.} Plate xxx. 



551. mammillatus, ^ in. whorls 2 or 3, spire rimmed, pillar short and 



curved, fold indistinct. 



552. truncatulus, % in. whorls 3 or 4, spire rimmed, pillar short 



and flattened, fold strong. 



553. oblusus, % in. whorls 4, angulated at top, spire not 



rimmed, pillar broad and curved, fold 

 indistinct. 



554. ventrosus, in. whorls 3, angulated at top, spire flat, pillar 



slight and curved, fold indistinct, outer 

 corner of mouth rounded. 



555. expansus, * in. whorls 3 or 4, angulated at top, spire 



abruptly truncated, pillar straight above 

 and curved below, fold obscure, outer 

 corners of mouth angulated. 



