Zoological Society. 131 



ZOOLOGICAL SOCIETY. 



May 11, 1847.— William Spence, Esq., F.R.S., in the Chair. 



On the Genera of the Family Chitonid,e {continued). 

 By J. E. Gray, Esq., F.R.S., F.Z.S. etc. 



1. Chiton, Linn, (part), Guilding, Z.J.v.27; Swainson ; Gray, Syn. 



Lepidopleurus, "Leach MSS.," Risso, Eur. Merid. 267. Chiton, 

 sect. A. 1. Blainv. Lepas spec, Adanson. Corephium, Brown. Lo- 

 phurus, Poli. Gymnoplax, Gray. 



* Scales of the margin moderate, smooth, polished; valves thickish. 



Ch. striatus, Barnes. Ch. olivaceus, Frembly, Sow. C. III. f. 3, 41. 

 Chiloe. 



Ch. Cumingii, Frembly, Sow. C. III. f. 32, 51. Chili. 



Ch. albolineatus, Sow. C. III. f. 39. Mexico. 



Ch.squamosus, Linn. Ch. bistriatus, Wood. Ch. obscurus, Sow. 

 West Indies. 



Ch. sulcatus, Wood, Sow. C. III. f. 12. 



Ch. granosus, Frembly. Chili. 



Ch. Barnesii, Gray. Coquimbo. 



Ch. glaucus, Gray, Spic. Zool. = Ch. viridis, Quoy. 



Ch. granulosus, Frembly. Conception. 



Ch. Siculus, Gray. Ch. Polii, Desh. Sicily. 



Ch. lyratus, Sow. C. III. f. 126. 



Ch. foveolatus, Sow. C. III. f. 60. 



Ch. excavatus, Gray, Sow. C. III. f. 131. 



Ch. fasciatus, Wood, Sow. C. III. f. 153. 



Ch. australis, Sow. C. III. f. 46. 



Ch. Stokesii, Brod., Sow. C. III. f. 24. 



Ch. virgulatus, Sow. C. III. f. 132. 



Ch. patulus, Sow. C. III. f. 134. 



Ch. marmoratus, Gmelin, Sow. C. III. f. 148. West Indies. 



Ch. evanidus, Sow. C. III. f. 139. 



Ch. articulatus, Sow. C. III. f. 18. California. 



Ch. hevigatus, Sow. C. III. f. 18*. California. 



Ch. Goodallii, Sow. C. III. f. 50. Galapagos. 



** Scales of the mantle small, smooth, polished. 

 Ch. Bowenii, King, Sow. C. III. f. 37. Magellan Str. 



*** Scales of the margin transversely grooved; valve rounded, not 



keeled, thin. 



This section forms a very natural group. 



Ch. textilis, Gray, Spic. Zool. =Ch. longicymba, Blainv., Quoy. 



Ch. Indicus, Sow. C. III. f. 55. Ch. Solea, Sow. C. III. f. 61. Cape 



of Good Hope. 



Ch. Magdaliensis, Hinds. 



**** Scales of the margin lanceolate, elongate, erect, closely pressed. 

 Ch. lsevis, Mont. =Ch. corallinus, Risso. 



