SPONDYLUS. 



Species 21. (Mus. Cuming.) 



Sfondylus flabellum. Spond. lestd late trirjond^Jlahel- 

 Uformi, suitus eoncavo-pland, supra radiatim ohscuri 

 liratd, lirk priticipaUhm pecuUariter rude, brevisqiia- 

 matis, sguamu Idc illic plus minus obsoletis, ared car- 

 dinali perampld; pnrpwrascente-rufd. 



The little fan Spondylus. Shell broadly triangular, 

 fan-shaped, concavely flattened beneath, radiately 

 obscurely ridged above, principal ridges pecidinrly 

 rudely short-scaled, scales here and there more or 

 less obsolete, cardinal area very large ; purple-red. 



Hah. ? 



Characterized in all its stages of development by a pe- 

 culiar fan-shaped growth, and by a stunted character of 

 sculpture on the radiating ridges. 



Species 32. (ilus. Cuming.) 

 Spondylus candidus. Spond. tesld suborhiculari, valde 

 irregulari, ared cardinali latimculd, radiatim liratd, 

 liris rudibus, subflexmsis, gemmato-imbricatis, inter- 

 stitiis striatis ; candidd, carneo-tinctd, liris interdum 

 vivide roseis. 

 The white Spondylus. Shell somewhat orbicular, very 

 irregular, cardinal area rather broad, radiately ridged, 

 ridges rude, rather flexuous, bead-imbricated, inter- 

 stices striated ; white, flesh-tinged, ridges sometimes 

 bright rose. 

 Lamarck, Anim. sans vert. vol. vii. p. 185. 

 Hab. Australia. Lord Hood's Island ; Cuming. 



The name given to this species, from iliscoloured speci- 

 mens, is rather an unfortunate one, the ridges being cha- 

 racterized in fine examples by a particularly bright rose 

 colour. The ridges, which are of an extremely irregular j 

 flexuous growth, are delicately begemmed throngho 

 with close-set imbrications. 



Species 23. (Mus. Cuming.) 

 Spondylus tenuispinosus. Sp07ul. testd orbiculari, sub- 

 tm concavd, conspictie spinosd et spathulato-squamatd, 

 stipra pland, radiatim mnltistriatd et liratd, liris pro- 

 fuse spinosis, spinis plerumque mimitis, pecuUariter 

 erectis; alba, valvd superiori nurantio-roseo varie 

 tinctd et maculatd. 

 The fine-spined Spondylus. Shell orbicular, concave 

 beneath, conspicuously spined and spathulately scaled, 

 flat above, radiately many-striated and ridged, ridges 

 profusely spined, spines generally minute, peculiarly 

 erect ; white, upper valve variously stained and spotted 

 with orange-rose. 

 SowERBY, Thesaurus Conch, vol. i. p. 421. pi. 87. f 37. 

 Hab. Island of Zebu, Philippines ; Cuming. 



Covered with a multitude of delicate prickly spines, pe- 

 culiarly erect in their development. 



Species 34. (Mus. Cuming.) 

 Spondylus pjctorum. Spond. lestd triijuiM-ooatd, ra- 

 diatim costatd, costis sex priiicijw/ibus furliler lingu- 

 lato-spino-us, interstitiis se.ccostatis, cot/is jjarci-t, breei- 

 ■spinosis ; vivide aurantio-riifd. 

 The painters' Spondylus. Shell triangularly ovate, 

 radiately ribbed, six principal ribs strongly lingularly 

 spined, interstices six-ribbed, ribs small, short-spined ; 

 bright orange-red. 

 Chemnitz, Conch. Cab. vol. vii. p. 94. pi. (J'J f tl, V. 

 Spondylus crassisquamatus, Lamarck. 

 Spondylus dubius, Broderip. 

 Hab. Island of Plata, West Columbia (ibuud attached to 

 coral rocks at the depth of seventeen fathoms) ; 

 Cuming. 

 Two very characteristic features in this fine species are 

 the regularity of its plan of sculpture, and its rich orange- 

 red colour. 



February, 18.5G. 



