SPONDYLUS. 



Plate XV. 



Spccif;s 53. (Mus. Cuming.) 

 Spondylus setiger. Sponcl. iestd ovatd, coiivcxo-ile- 

 pressd, radiatim Virata, liris fortiter spinosis, spiiiii 

 valde irregularihus, subconcentrice disposiiis ; rubido- 

 f/iscd, circa nmbonerii albd, savguineo-macidatd. 

 The bristled Spondylus. Shell ovate, convexly de- 

 pressed, radiately ridged, ridges strongly spiucd, 

 very irregular, spines an-anged somewhat concen- 

 trically ; ruddy brown, white, blood-spotted, about 

 the umbo. 

 Hal). Philipi)iue Islands. 



Of a peculiar ruddy brown colour, ornamented with 

 strong very irregular spines, ranged somewhat concentri- 

 cally. 



Species 54. (Mus. Cuming.) 



Spondylus electrum. S^iond. tedd suborbiculari, con- 

 vexo-depressd, radiatim tenuilirald et striata, liris wn- 

 ricato-spinosit, spinis niinierosis, parvis ,• r/ifisce/ifc- 

 aurantid, spinis saturalioribus. 



The amber Spondylus. Shell suborbicular, convexly 

 depressed, radiately finely ridged and striated, ridges 

 prickly spined, spines numerous, small; reddish- 

 orange, spines darker in colour. 



Hab. V\est Indies. 



k delicate conxexly depressed orbicular species, rayed 



with very flue ridges of smaU prickly spines, the whol' 

 being of a semitransparent amber-orange colour. 



Species 55. (Mus. Cuming.) 



Spondylus imbutus. Spond. testd suborbiculari, irregv- 

 lari, vix striata, rude aculeatd et squamatd, sqnamk 

 palmato-ramosis, d^presse curvotis ; intense purpurea- 

 r„fd. 



The dyed Spondylus. Shell suborbicular, in-egular, 

 scarcely striated, rudely prickled and scaled, scales 

 palmately branched, depressly curved ; deep purple- 

 red. 



Hab. ? 



A shell of somewhat rude growth, of a deep burnt-red 



colour, armed with a few fine prickles and palmately 



branched scales, depressly bent forwards. 



Species 56. (Mus. Cuming.) 



Spondylus cuneus. Spond. testd oblongo-ovatd, radia- 

 tim liratd et striata, liris snbconfertis, irregularibus, 

 widiqiie promiscue spinosis; purpureo-riifd. 



The wedge Spondylus. Shell oblong-ovate, radiately 

 ridged and striated, ridges rather close-set, irregulai-, 

 promiscuously spined throughout ; purple-red. 



Hab. West Indies. 



Of a characteristic purple-red colour, beset rather closely 



with irregularly spined ridges. 



