CALYPTR^A 



Species 11. (Fig. 11 « and lU, Mus. Ciimiiig.) 



Calypir.ea fibulata. Calyp. tedd orbiculari, depream- 

 couvexd, allid, ri'i/oso-malleatd, valde irretjulari, radi- 

 utim dense striatd, striis acutin, varie dwergentibiis, 

 verilce subjpoatico, obtuse mamillato ; appendice internd 

 parvd, brevminid. 



The buttoned Calyptr^a. Shell oibicular, depressly 

 convex, wliite, wrinkle-indented, very iiTeguIar, ra- 

 diately densely striated, striae sharp, variously diverg- 

 ing, vertex somewhat posterior, obtusely mamillate ; 

 internal appendage small, very short. 



Hah. Catanauan, Province of Tayabas, Island of Ijuzon, 

 Philippines ; Cuming. 



Of a depressed shrivelled gron-th, striated somewhat 

 divaricately throughout, with the internal appendage very 

 small. 



Species 12. (Fig. 13 a and 12 b, j\Ius. Cuming.) 

 Calyptk.ea stultokum. Cali/p. testa orbiculari, conicd, 

 pili'ijbrmi, vertice postice acute uncinatd, concentriae 

 plicato-comigatd, radiatim, dense striatd; pellucido- 

 albd ; appendice internd oblique arcuatd. 

 The fool's-cap Calyptr^a. Shell orbicular, conical, 

 cap-shaped, posteriorly sharply hooked at the top, 

 concentrically plicately wrinkled, radiately densely 

 striated ; transparent-wliite ; internal appendage ob- 

 liquely arched. 

 TIab. Moluccas. 



A delicate Pileopsis-shaj)ed shell, of thin transparent- 

 white substance, very sharply hooked at the top, encircled 

 concentrically, more especially towards the margin, with 

 irregular nrinkle-like folds. 



Species 13. (Fig. 13 re and 13 4, Mus. Cuming.) 



Calyptk.ea Maktiniana. Calgp. testa ovatd, elevato- 

 coni\'xd, pellucido-albd, crassiusculd, valide imdato- 

 corrugatd prcesertim ad marginem, undique rugis exas- 

 peratd, vertice subcentrali, obtiiso ; appendice internd 

 obliqud, prominmte. 



Martini's CALYPTR.iEA. Shell ovate, elevately convex, 

 transparent-white, rather thick, strongly wave-crum- 

 pled, especially at the margin, everywhere roughened 

 with wrinkles, top nearly central, obtuse ; internal 

 appendage oblique, prominent. 



Lepas alba, Martini, Conch. Cab. vol. i. p. 150. pi. 13. 



f. 117, 118. 

 Sab. Batangas, Island of Luzon, Philippines ; Cuming. 



All the shells of this genus that came into the hands of 

 the earlier writers were referred to the Linnsean Patella 

 equestris, and this among the number. It was one of the 

 first shells published by Martini in his great work the 

 ' Conchylien Cabinet,' commenced in the old academic 

 town of Nuremberg, in 1769. The specimen here figured, 

 collected by Mr. Cuming at the island of Luzon, is an 

 unusually fine specimen, remarkable for its bold crumpled 

 growth. 



Species li. (Fig. 14 a and 14 b, Mus. Cuming.) 

 Calyptr^a cepacea. Calyp. testd HuborUculari, parum 

 convexd, pellucido-albd, subcorrugatd, radiatim dense 

 striatd, striis subconspicuis, vertice siibpostieo, parvo, 

 acuta, minute uncinato ; appendice internd brevi, loti- 

 uscttld. 

 The onion-peel Calyptr.^a. Shell nearly orbicular, 

 but little convex, transparent-white, rather wrinkled, 

 radiately densely striated, striae rather conspicuous, 

 top somewhat posterior, small, sharp, minutely 

 hooked ; internal appendage short, rather broad. 

 Broderip, Trans. Zool. Soc. vol. i. p. 197. pi. 27. f. 4. 

 Hab. Island of Muerte, Bay of Guayaquil ; Cuming. 



A ratlier flat, hyaline shell, with the beautiful radiating 

 striae which characterize neariy all the species of this ge- 

 nus under different phases, rather conspicuously deve- 

 loped. 



Species 15. (Fig. 15 a and 15 b, Mus. Cuming.) 

 CalyptR;EA sacchari-meta. Calyp. testd orbiculari, 

 elevato-convexd, pileifornii, albd, coneenlrice rude pli- 

 cato-corrugatd, radiatim striatd, vertice subcentrali, 

 obtuse uncinato ; appendice internd subelongatd. 

 The sugar-loaf Calyptr^a. Shell orbicular, elevately 

 convex, cap-shaped, white, concentrically rudely pli- 

 cately wrinkled, radiately striated, top nearly central, 

 obtusely hooked; internal appendage rather elon- 

 gated. 

 Hob. Island of Bohol, Philippines ; Cuming. 



Very closely allied to C. stuUormn, but of more solid 

 structure and more elevated conical form. The vertex is 

 not however so posteriorly hooked and cap-like. The 

 wrinkled sculpture is coarser, but that might be due to 

 the more roughened surface of its place of attachment. 



December, 1858. 



