18 GASTEROPODA. 



tinged with chestnut ; interior brownish purple. Length, 175 ; 

 breath, "8. 

 Common. 



* 57. A. pyramidaliS, Reeve. Shell ovate, rather thin, ventri- 

 cose, purplish fawn colour, callosity fuscous ; spire pyramidally accu- 

 minated, callous throughout ; columella arcuately twisted. (Reeve.} 



I have seen no specimens that I can refer to this species unless it 

 be the young of A. a list rails. 



'* '"5s. A. Obesa, Sowerby. Shell ovate, rather stout ; dull white, 

 iianded and flamed with purplish red; spire conical; whorls rather 

 swollen round the upper part, double grooved at the lower; columella 

 conspicuously arched. (Peeve.) 



FAMILY YOLTTTTD^. 



Shell convoluted ; aperture notched in front ; columella deeply 

 plaited. Animal with a recurved siphon, and large foot. 



VOLUTA. 



Shell oval or fusiform, spire more or less produced ; aperture large, 

 without a canal. 



Pacific Ocean from Cape Horn to Java, Tropical Atlantic. 



59. V. (Alcithoe) pacifica, Lav/ark, I.e., x.. 309; r. aralica, 



I.; Y. (/i-cu-ilis, Su-ainson ; V. fusus, Qitoy, I.e.. ii., 027 (youny) ; 

 V. ci/iiihiol .:oa. Shell ovate-fusiform ; whorls rather flattened 



in the adult, with a row of tubercles increasing in size anteriorly ; 

 shell rather thin ; aperture large, widening anteriorly ; columella with 

 four or five plaits. Fulvous w r ith dark brown or blackish, angular, 

 flexuous, anastomosing, transverse markings, which, being thicker and 

 darker in certain places, form three or four more or less distinct 

 spiral bands on the body whorl ; sometimes entirely covered with a 

 dark reddish brown coating. Length, 7'5 ; breadth, 3 ; angle of spire, 

 40 to 48. 



Var. B. (V. yracilis). Small and narrow ; whorls sub-nodulose. 



Far. C. Pale fulvous without any markings ; whorls smooth ; colu- 

 mella with five or six plaits. 



Both of these varieties are sometimes covered over with a dark 

 reddish brown coating, like the typical form. 



60. V. (Alcithoe) SUbplicata, *p. nov. Shell small, thick ; 

 elongato-oval ; spire whorls flattened, plicate ; body whorl plicate 

 posteriorly ; aperture elongate, rather narrow ; columella with four 

 plaits ; outer lip thickened. Fulvous with chestnut-brown, angular, 

 flexuous, anastomosing, transvere markings, not forming bands; some- 

 times covered with a dark reddish brown coating. Length, 2'15 ; 

 breadth, 78 ; angle of spire, 36 to 40. 



Rare. 



61.. V. (Cyillbiola) kirki, ?/'. / Broadly ovate ; spire 



depressed; a few Mui;t tubercles on the body whorl ; columella with 



