COCHLOSTYLA-CORASIA. 107 



H. vitracea FEB., Prodr. 146; Hist., t. 64, f. 5. DH. in text of 

 same, i, p. 340. PFR., Mon. Hel. Viv. i, p. 233 (desc. from fig.) ; 

 Conchyl. Cab., t. 76, f. 20, 21 (copied from Fer.). Cox, Mon. 

 Austr. L. Sh., p. 109, t. 11, f. 20, 20a, (copied from Fer.) 



Known solely by the original figures in Ferussac's Histoire, which 

 are copied on my plate. 



C. SUBVITREA Pfeiffer. PI. 13, figs. 54, 55. 



Shell umbilicate, trochiform, rather solid, obliquely distinctly 

 striated, decussated with close, very fine spiral strise, satiny, buffish- 

 hyaline ; spire convex-conic, rather obtuse. Whorls 6, a little con- 

 vex, slowly increasing, having an exserted cord-like carina ; the 

 last whorl slightly deflexed in front, more convex below the median 

 carina, a little turgid in front, subcanaliculate toward the narrow 

 umbilicus. Aperture very oblique, subtriangular-lunar ; peristome 

 white, shining, the margins remote ; right margin expanded a little, 

 columellar margin substraightened, outwardly reflexed, subdentate 

 within, dilated in a vaulting, vitreous plate at the insertion. 



Alt. 15, greater diarn. 20*, lesser 19 mill. (P/r.) 



Moluccas. 



H. subvitrea PFR., P. Z. S. 1854, p. 148 ; Monogr. iv, p. 253 ; 

 Novit. Conch, i, p. 8, t. 3, f. 8, 9. REEVE, Conch. Icon., t. 194, f. 

 1361. 







The locality should be confirmed. This shell has much the aspect 

 oflf. (Satsuma) japonica, judging from the figures. 



H. CYMODOCE Crosse. PL 13, figs. 39, 40. 



Imperforate, turbinate-trochiform, rather thin, subpellucid, longitu- 

 dinally minutely striatulate; dull yellowish-white; spire subconic, 

 apex pale violaceous, suture impressed ; whorls 5, a little convex, the 

 last slightly descending, ventricuse, longer than the spire, obtusely 

 carinated below the middle, having a pale violaceous zone below the 

 carina, but little conspicuous. Base moderately convex, spirally 

 very delicately decussated. Aperture oblique, lunate-subquadrate ; 

 peristome milk-white, margins distant, columellar margin dilated, 

 basal and outer margins narrowly reflexed. 



Alt. 17, greater diam. 22, lesser 18 mill. (Crosse.) 



Habitat unknown. 



H. cymodoce CR., Journ. de Conchyl. 1869, p. 184; 1870, p. 102, 

 t. 2, f. 3. 



