80 



247. elongatus, CJiemn. — C. oblongus, cylindricus, tenuis, 

 pallidus, castaneo variegatus aut fasciatus, infra sulcatus; spira 

 elevata, obtusa, maculata, striata (f. 440, 441). — More cylindrical 

 in form than C. Mediterraneus, and differently marked. 



248. c^erulescens, Chemn. — C. C. Mediterraneo similis, sed 

 angulatus, sparsim variegatus; spira breviore (f. 442). — This may 

 be a more conical form of C. Mediterraneus, with sparsely distri- 

 buted markings. 



249. patjperculus, Sowb. — C. oblongus, lsevis, angulatus, sor- 

 didus, rubro seriatim maculatus (f. 217). — A dull shell, indistinctly 

 marked. 



250. eucatus, Reeve. — C. elongatus, angulatus, striatus, fus- 

 cus, medio et ad angulum albo fasciatus ; spira acuminata, alba, 

 maculata (f. 308 ; var. ? 422). — Resembling C. Algoensis, but an- 

 gular and sharp-spired. 



251. Algoensis, Sowb. — C. subcylindricus, castaneus, albo va- 

 riegatus, superne rotundatus; spira maculata (f. 421).- — A date- 

 shaped shell, of a uniform chestnut-brown colour, spotted with 

 white. 



252. attenuatus, Reeve. — C. elongatus, angulatus, flavidus, 

 albo angulation strigatus; spira brevi (f. 423). — Of an oblong 

 conical form, yellow, with lightning-marks of white. 



253. mercator, Linn. — C. subovalis, tenuis, late fasciatus, 

 inter fascias lineis rubris reticulatis ; spira brevi (f. 294, 295 ; var. 

 42S, 429). — The latter var. undeveloped, showing no reticu- 

 lations. 



253 a. balteus, Mawe. — C. quam C. mercator solidior, angu- 

 latus; fasciis castaneis; spira brevi (f. 424). — More solid and an- 

 gular than C. mercator, with the markings more close and the 

 spire rather flat. 



254. lugubris, Reeve. — C. quam C. balteus magis pyriformis, 

 nigrescens; spira plana (f. 320). — More like C. balteus than the 

 preceding, but very narrow at the base, and very darkly coloured. 



255. bulbds, Reeve. — C. tenuis, pyriformis, supra ventricosus, 

 infra attenuatus, pallidus, flammulis castaneis longitudinalibus 

 strigatus (f. 427).- — Swelling at the top, tapering below, striped 

 downwards. 



256. zebroides, Kien. — C. quam C. bulbus magis conicus; 

 strigis longitudinalibus, numerosis (f. 443). — Shape more conical 

 and stripes more numerous than in C. bulbus. 



