450 



38. Cancellaria littorin^formis (pi. xcii. f. 5, 6, 9), Sow- 

 erby, Conch. Illustr. f. 14. 



C. testa rotundata, minute granulatini decussata ; spira obtusa ; 

 sutura. nonnunquam sub -sulcata ; apertura interne costata, colu- 

 mella triplicate, umbilicata : colore fusco. 



A short species resembling a common Periwinkle. Minute 

 lines crossing each other on the surface produce a fine granulation. 

 In some varieties the spire is more produced and the whole are 

 slightly depressed at the suture. 



From Ceylon. 



39. Cancellaria Yerrauxii (pi. xciii. f. 28), Kiener, pi. viii. 

 f. 3. p. 17. 



C. testa ovali, costis rugosis longitudinalibus, et lineis elevatis 

 spiralibus cancellata : spira acuminata; anfractibus angulatis ; 

 apertura interne striata, columella triplicate umbilicata, colore 

 fusco rufescente. 



The spire more produced than in C. littorinaformis, with the 

 surface cancellated ; of a Hght brown-colour. 



Locality unknown. 



40. Cancellaria cancellata (pi. xciv. f. 51. Lam. E. M. f. 4). 



C. testa ventricosa, costis longitudinalibus distantibus nodu- 

 liferis et costis transversis undulatis acutiusculis cancellata; an- 

 fractibus rotundato-angulatis ; apertura postice et antice canaHcu- 

 lata, interne costata ; columella crassa, antice rugosa, triplicata ; 

 umbilico magno : colore per fascias duas fuscas spirales disposito ; 

 apertura alba. 



A ventricose shell, cancellated by spiral rather angulated ribs, 

 crossing and forming nodules upon distant longitudinal ones. 

 The umbilicus is large. 



Found in the Eiver Gambia, and at Malaga in Spain. 



41. Cancellaria similis (pi. xciv. f. 42), Sowerby, Conch. 

 Illustr. no. 9. 



C. testa ventricosa, costis longitudinalibus flexuosis, distantibus, 

 et costis transversis acutis numerosis, sub-alternatis cancellata; 

 apertura postice et antice canaliculata, interne costulata, umbibco 

 magno ; colore griseo, et albo fusco fasciato. 



Like C. cancellata, but shorter, with the spiral ribs very much 

 more numerous and having in some parts an interstitial rib. 



From Senegal. 



