HELICINA §. 19. 20. 
211 
167, inaeiilata Sow. -f (Gray Phan. p. 284. — - Pa- 
chy stoma Ad. Gen. p. 303.) Mon. p. 391. 
168 . M. conoidea 2*I*r. 
T. conoidea, tenuiuscula, subscabre striata, vix nitidula, 
pallide corneo-grisea ; spira regulariter conoidea, acutiuscula; 
sutura leviter impressa ; anfr. 4y 2 subplanulati, sensim accres- 
centes, ultimus utrinque convexior, peripheria subcarinatus ; 
columella brevis, deorsum attenuata, callum basalem emittens 
tenuem, circumscriptum; apertura diagonalis, integra, subtri- 
angularis; perist. simplex, margine supero vix expanso, basali 
subincrassato , reflexiusculo. — Operc. ? — Diam. maj. % X 'U, 
min. 4 3 / 4 , alt. S 1 /^ mill. (Mus. Cuming.) 
Helicina conoidea Pfr. in Proc. Zool. Soc. 1853. p. 53. 
— — Pfr. in Malak. Bl. I. 1854. p. 108. 
Habitat in insula Barbadoes. 
169. H. multicolor Gould. 
T. globoso - conica , solidula, levissime striatula, rufula, 
albo-variegata, vel citrina, interdum fusco-fasciata; spira con- 
vexo-conoidea ; anfr. 4 vix convexiusciili , ultimus peripheria 
subcarinatus, basi convexior, callo crassiusculo centrali ob- 
ductus ; columella basi subincrassata; apertura diagonalis, fere 
semicircularis ; perist. simplex, tenue, breviter expansum. — 
Operc.? — Diam. maj. 4i/ 2 , min. 3 3 / 4 , alt. 2% mill. (Mus. 
Cuming.) 
Helicina multicolor Gould Exped. Sh. t. 7. f. no. 
— — Pfr. Mon. Pneum. p. 353. n. 34. 
— — Gray Cat. Phan. p. 255. 
— — (Idesa) H. et A. Adams Gen. II. p. 304. (Pachy- 
stoma ib. p. 303.) 
— — Pfr. in Malak. Bl. 1857. p. 36. 
Habitat Tonga Taboo (Gould), Taheiti (spec. Gouldiana typ.). 
§. 20. 
170. occidental^ Guild. (Gray Phan. p. 280, — 
Pachystoma Ad. Gen. p. 303. — Oliqyra occidcn • 
tails M. E. Gray Fig. t, 311. f. 4 ex' Guild.) . . Mon. p. 386. 
171. Iff, He a tel W> ffr. 
T. subdepressa, tenuiuscula, striatula et subgranulata, 
parum nitida, fasciis latis saturate purpureis et albis picta; 
14 * 
