Zoological Society. 217 



pressd, margine lato, irregulariter rugoso, rubro, viridi, alboque 

 maculato. Variat testa angustiore, margine rosed. 



Long. '55 ; lat. *45 poll. 



Hab. Calapan, ins. Mindoro, Philippinarum. H. Cuming legit. 



Remarkable for the character of the first valve, which is broadly 

 fluted by five radiating ribs. The four or five central valves, in 

 several specimens, are nearly covered by a dark purple colour, the 

 two last patched with green, and the first nearly white, but subject 

 to some variations. Found in coarse sand among small stones at a 

 depth of nine fathoms. 



Chiton floccatus. Ch. testd ovali depressd, ant ice august at d, 

 pallide fulvd ; nigro, fusco, viridi, roseoque maculatd : valvis 

 terminalibus radiatim sulcatis, valvis medianis utrinque unicos- 

 tatis, areis centralibus longitudinaliter sulcatis ; areis lateralibus 

 granulatis, marginibus serratis ; valvd terminali obtuse elevatd ; 

 margine rubro vel fusco, maculis et punctis albis fasciato . 

 Long. -80; lat. "45 poll. 



Hab. Cagayan, Misamis, ins. Mindinao, Philippinarum. H. Cu- 

 ming legit. 

 This species is found at Mindinao, under stones at low water, and 

 at Calapan on small stones, at a depth of fifteen fathoms. The mar- 

 gin is sprinkled with white patches resembling flakes of snow, on a 

 reddish brown ground. 



Chiton Luzonicus. Ch. testd ovali, angulatd, stramined, viridi 

 longitudinaliter strigatd : valvarum areis terminalibus et latera- 

 libus radiatim granulatis ; areis centralibus acute longitudinaliter 

 sulcatis, margine sublavi. 

 Long. -35 ; lat. '20 poll. 



Hab, Sorsogon, pr. Albay, ins. Luzon, Philippinarum. H. Cu- 

 ming legit. 

 This small and apparently insignificant shell is very sharply 

 ribbed in the central areas, and presents a very nicely sculptured 

 surface when viewed through a magnifying glass. The specimens 

 were taken on dead shells at a depth of fifteen fathoms. 



Mr. Waterhouse next proceeded to characterize the following new 

 species of Curculionidcc from the collections of Mr. Darwin and Mr. 

 Bridges. 



Divisio CLEONIDES, Schoenherr. 



Genus Listroderes, Scho. 

 Listroderes SUBCOSTATUS. Listr. niger, opacus, fusco- squamosus ; 

 antennis piceis ; rostro brevi, carinato ; thorace punctatissimo , sub- 

 quadrato, postice angustiore, setis fuscescentibus instructo ; elytris 

 punctato-striatis, fusco-setosis, interstitiis alternatis subelevatis. 

 Long. corp. et rostri, 6 lin. ; lat. 2| lin. ; long. 4J, lat. 2 lin. 

 Hab. Valleys of Petorca. 



Rostrum about half as long again as the head, with three costae 

 above, the central one but little developed, and the lateral costae in- 

 distinct ; the space between the costae finely rugose ; the whole sur- 



