PECTEN. 



Plate XXXII. 



Species 142. (Mus. Cuming.) 



Pecten pulchella. Feci, testa suhqimdrato-orhkulari, 

 compresso-convexd, subaquivalvi, inaquilaterali, valvis 

 concentrice tenuisfriatis, costis lavibus qitatuordedvi 

 peculiarUe)- ohlique radiatis, interstitiis laliusculis ; 

 albidd, roseo et violaceo profuse, et eximte tinctd, valvd 

 dextrd pallidiore ; auricuUs grandibus, intsqualibus. 



The pketty Pecten. Shell somewhat squarely orbi- 

 cular, compressly convex, nearly equivalve, inequila- 

 teral, valves concentrically finely striated, peculiarly 

 obliquely rayed with fourteen smooth ribs, inter- 

 stices rather broad ; whitish, profusely and delicately 

 stained with violet and rose, right valve the paler ; 

 ears large, unequal. 



Hab. Moreton Bay, Australia ; Strange. 



A delicate but richly coloured species, rib-rayed in a 

 peculiarly oblique manner. 



Species 143. (Mus. Cuming.) 



Pecten coeuscans. Feet, testa globosd, valde coiwexd, 



aquilaterali, iiuequivalvi, valvis costis pecuUariier 



i^ .^ acute fn-limtis vigintl radiatis, interstitiis dense sca- 



'ty/j * hroso-cancellatis ; albidd, rosea varii tinctd et macu- 



^ lata ; auriculis intsqualibus. 



\ The glittering Pecten. Shell globose, very convex, 

 equilateral, inequivalve, valves rayed with twenty 

 ribs, which are peculiarly sharply three-ridged, inter- 

 stices densely scabrous -cancellated ; whitish, vari- 

 ously stained and blotched with rose ; ears unequal. 

 Hinds, Moll. Voy. Sulphur, p. 61. pi. 17. f. 3. 

 ffab. Port Anna Maria, Nukuhiva, ^Marquesas Islands (in 

 seven fathoms on a sandy floor) ; Belcher. 



The ribs of this species differ peculiarly in structm-e 

 from those of any other. 



Species 144. (Mus. Cuming.) 



Pecten eugoscs. Feci, testa ovatd, (Bqidlaterali, aqtii- 

 valvi, valvis costis- viginti, confertis, brevuquamatis, 

 radiatd ; fidvd, fusco-nigricante variegatd ; auriculis 

 incequalibus. 



The rough Pecten. Shell ovate, equilateral, equivalve, 

 valves rayed with twenty close-set short-scaled ribs ; 

 fulvous, variegated with brown-black ; ears unequal. 



Sow'ERBY, Pro. Zool. Soc. 1843. 



Hab. Island of Burias, Philippines ; Cuming. 



A small profusely scaled species, of variegated tortoise- 

 sheU-like colouring. 



Species 145. (Mus. Cuming.) 



Pecten leopaedds. Feet, testd ovatd, Jlabelliformi, me- 

 dio subconvexd, ad umlones et versus marginem com- 

 pressd, aquilateraU, vix mquivalvi, valvis concentrice 

 dense scabroso-striatis, costis sexdecim rotimdatis ra- 

 diatis, costis valvm sinistra .sttbangusth disiantibus, 

 dextree latioribns minus distantibus ; albd, costis vahye 

 sinistra fidvo-feirugiiieo tinctis et maculaiis ; auriculis 

 gratidibus, aqualibus. 



The leopard Pecten. Shell ovate, fan-shaped, slightly 

 convex in the middle, compressed at the umboes and 

 towards the margin, equilateral, scarcely equivalve, 

 valves concentrically densely scabrous-striated, rayed 

 with sixteen rounded ribs, ribs of the left valve rather 

 narrow and distant, of the right valve broader and 

 less distant ; white, ribs of the left valve stained 

 and spotted with fulvous rust ; ears large, equal. 



ITab. Moreton Bay, Australia. 



A very delicate densely striated species, of the same 

 peculiar type as F. Solaris. 



Species 146. (Mus. Cuming.) 



Pecten hyalina. Feet, testd elongato-ovatd, flabelli- 

 formi, tenui, hyalind, nitente, vix cequilaterali, aqui- 

 valvi, valvis costis decern planulatis superfciariis ob- 

 solete radiatis; cinerascente-corned, putictis rujis et 

 albis pivmkcue aspersd; atiribulis tgqualibus. 



The hyaline Pecten. Shell elongately oval, fan- 

 shaped, thin, hyaline, shining, scarcely equilateral, 

 equivalve, valves obsoletely rayed with ten flattened 

 superficial ribs ; ash-horny, promiscuously sprinkled 

 with red and white dots ; ears equal. 



PoLl, Test, utriusque SicU. pi. 28. f. 6. 



Rab. Mediterranean. 



A transparent horny shell, with the ribs so superficial 



as to be scarcely perceptible. 



June, 1853. 



