CALYPTRyEA 



Species 26. (Eig. 26 a, b, c, d, Mus. Cuming.) 



Calyptr^a Hipponicipoemis. Cali/p. testa elevato- 

 conicd, obliqud, pellucido-albd, undigue subtiliter Jilo- 

 striatd, interdum rude corrngata ; veriice postico, 

 valde obliguo, obtuso ; appendke interna gracili. 



The Hipponyx-shaped Calyptr^.a. Shell elevately 

 couioal, oblique, transparent-white, everywhere finely 

 thread-striated, sometimes rudely wrinkled ; top pos- 

 terior, very oblique, obtuse ; internal appendage 

 slender. 



Hah. Island of Bohol, Philippine Islands ; Cuming. 

 In form this shell has an unusual tendency to lean over 



obli(iuely to the posterior side. It is of an exquisite thread- 



."triated tissue. 



tern of cancellated scaled sculpture than any other, the 

 ribs being mostly distinguished by a fine groove down the 

 middle. 



Species 27. (Fig. 27 a, b, Mus. Cuming.) 



Calyptr.«a cancellata. Calyp. testa oblique conicd, 

 pellucido-albd, radiatim teiiuicostatd, costis medio sub- 

 tilissime sulcatis, striis coneentricis cancellatis et fim- 

 briato-sgiiamatis, vertice mimito, acuta, postice valde 

 producto ; appendice interna subprominente. 



The cancellated CalyptRjEa. Shell obliquely coni- 

 cal, transparent-white, radiately finely ribbed, ribs 

 very finely grooved down the middle, cancellated 

 and fimbriately scaled with concentric striaj, top mi- 

 nute, sharp, very much produced posteriorly; inter- 

 nal appendage rather prominent. 



Adams and Reeve, Moll. Voy. Samarang, p. 70. pi. 11. 

 f. 4.. 



Hab. China Sea. 



This species is characterized by a more elaborate pat- 



Species 28. (Fig. 28 a, b, Mus. Cuming.) 



Calyptr^a Layaedi. Calyp. testa elevato-conicd, sub- 

 globosd, radiatim subacute striato-cosiatd, vertice ob- 

 tuso, postice obliguo; alba ; appendice interna recta, 

 subprominente. 



Layard's Calyptr.ea. Shell elevately conical, rather 

 globose, radiately rather sharply striately ribbed, top 

 obtuse, posteriorly oblique ; white ; internal appen- 

 dage straight, rather prominent. 



Tlai. Ceylon ; E. L. Layard. 



A well-marked species, more globosely elevated than 



the preceding, with a simpler form of sculpture. 



Species 29. (Pig. 29 a, b, Mus. Cuming.) 



Calyptr.'Ea cyathella. Calyp. testa orbiculari, semi- 

 globosd, pelltccido-albd, radiatim tenuistriatd, concert- 

 trice compresse laniellatd, alba,, vertice vix obliguo, ob- 

 tuso ; appendice interna subrectd. 



The little cup Calyptr^a. Shell orbicular, semi- 

 globose, transparent-white, radiately finely striated, 

 concentrically eompressly lamellated, white, top 

 scarcely oblique, obtuse ; internal appendage nearly 

 straight. 



Hab. Island of Bohol, Philippines ; Cuming. 



This little shell has scarcely any oblique growth, being 



a half sphere. 



aber, 1858. 



