SPONDYLUS. 



Plate XIV. 



Species 49. (llus. Cuming.) 



Spondylus spectrum. Sponcl. testa trigono-ovatd, irre- 

 gidari, radiatim tenuUiraid, liris aculeis tirevibus an- 

 fjidatis promisciie armatis ; alba, versus ntarginem 

 fused inter liras, circa umbonem nigra maculatd. 



The spectre Spondylus. Shell triangularly ovate, ii-re- 

 !;ular, radiately finely ridged, ridges promiscuously 

 armed with short angular prickles ; white, brown 

 towards the margin between the ridges, spotted with 

 black ai-ound the umbo. 



Hab. PhOippine Islands; Cuming. 



Of a rude triangularly ovate form, rayed with fine 



I'idges, beset throughout with short angular prickles, 



which towards the margins become more dense and ap- 



pressed one upon the other. 



Species 50. (Mus. Cuming.) 



Spondylus Nicobaeicus. Sjjond. testa ocatd, concexo- 

 d^pressd, radiatim striata, aculeis erectis imdique ar- 

 mald ; alhd, purpureo-fusco partim tincld, circa um- 

 bonem maculis purpureo-iiigris radiatd. 



The Nicobar Spondylus. Shell ovate, couvexly de- 

 pressed, radiately striated, beset throughout mth 

 erect prickles ; white, partially stained with purple- 

 brown, rayed with purple-black spots round the 

 umbo. 



Chemnitz, Conch. Cab. vol. vii. pi. 45. f. 469, 470. 



Hab. Philippine Islands ; Cuming. 



Covered throughout with short erect prickles, and 

 rayed iu a characteristic manner with purple-black spots. 



Species 51. (Mus. Cuming.) 



Spondylus ramosus. Spoud. testa ovatd, siibdepressd, 

 subirregulari, radiatim tenuiliratd, liris spiuis ramosis 

 07-i/atis ; vivide croceo-aurantid. 



The branched Spondylus. Shell ovate, rather de- 

 pressed, somewhat u-regidar, radiately finely ridged, 

 ridges ornamented with branched spiues ; bright 

 saffron-orange. 



Hab. West Indies. 



Chiefly distinguished by the elegantly branched growth 



of most of the spines. 



Species 52. (Mus. Cuming.) 



Spondylus radula. Spond. testd ovatd, radiatim tenui- 

 liratd, liris subdistantibus, iuterstitiis striatis, dense 

 promiscue ramoso-spinosd ; cariieo-albidd, purpureo- 

 rufo plus minus tincld . 



The rasp Spondylus. Shell ovate, radiately finely 

 ridged, ridges rather distant, striated in the inter- 

 stices, densely promiscuously branch-spined ; flesh- 

 white, more or less stained with purple-red. 



Hab. Tehuantepec, West Mexico ; Captain Dare. 



The leading characteristic feature of this species is a 



dense promiscuous covering of spines, some small and 



prickly, others palmately branched. 



May, 185(5. 



