38 CYPRiEA. 



tura, sinuata, antice expansa; dentibus numerosis, brevius- 

 culis. 



128. poraria, Linn., (f. 236, 237).— C. testa C. Listed 

 affini, parva, brevi, obtusa; basi iuimaculata ; labii dentibus 

 brevioribus. 



129. albuginosa, Mawe, (f. 256, 257, 517).— C. testa 

 C. IAsteri affini, 0. porarios simili, majori, punctis albis in- 

 terstitialibus nullis, guttis annulatis conspicuis ; extremitati- 

 bus apertis ; dentibus minutis. 



Note. — Listeri, poraria, albuginosa. The three species are 

 strongly inclined to purple colouring at the base and sides, 

 and all have annulated ocelli on the back. The two first 

 have minute white specks between the ocelli, but the last 

 has not. The teeth in albuginosa are small. Poraria is a 

 short, close-mouthed, obtuse-ended shell. It is not spotted 

 like Listeri on the base, and its teeth are much shorter and 

 more compact. 



129*. Macandrei, Sowb., (f. 518*, 519). — See last page. 



130. gangrenosa, Soland., (f. 230-235 j var. labio-lineata, 

 Gask., 231.) — C. testa ovato-subdepressa, obtusa, albido- 

 subcasrulea; dorso plus minusve olivaceo, punctis minutis 

 albis ocellisque annulatis sparsis notato, apice sulcato ; ex- 

 tremitatibas fuscis, macula nigro-castanea antice et postice 

 pictis ; lateribus marginatis, reflexis, crenulatim foveolatis ; 

 basi alba, convexiuscula ; dentibus brevibus, circa 18 et 18, 

 interstitiis angustis. 



131. spurca, Linn., (f. 118-122, et 516; var. flaveola, 

 Linn., f. 121). — C. testa G. gangrcenosce affini; lateribus 

 punctatis, punctisque castaneis super ocellis albis depositis ; 

 labii dentibus magis distantibus ; maculis prope extremitates 

 nullis, nee terminis fuscis. 



132. cernica, Sowb., (f. 238, 239, 240).— C. testa G. gan- 

 grainosce et G. spurcce affini, brevi ; dorso elevato ; dentibus 

 parviusculis, maculis rotundis albis haud contaminatis. 



Note. — Gangraenosa, spurca, cernica. All the varieties we 

 have seen of gangrenosa are tinted with orange-brown, and 

 have black, treacle-like spots at the ends, and the ocelli 

 are annulated. The teeth are generally shorter and closer 

 than in the following species. Fig. 233 represents a curious 

 instance of white superdeposit of enamel covering all but 

 the end blotches of colour. The characteristic of C. spurca, 



