447 



Of an oval form, minutely crossed by sharp ribs and striae. 

 From the Isle Ticao. Taken in sandy mud at a depth of six 

 fathoms. 



26. Cancellaria asperella (pi. xciii. f. 38. pi. xcv. f. 74), 

 Lamarck, E. M. p. 347. f. 3. 



C. testa ovali, longitudinaliter costis angulatis, et transverse 

 lineis elevatis acutis, asperrime decussata; spii-a acuminata; an- 

 fractibus ad suturam canaliferis ; apertura interne costata ; labio 

 externo denticulate ; columella subumbilicata, rugosa, tripKcata : 

 colore fuscOj obscure fulvo unifasciato. 



Much more coarsely and sharply decussated than C. elegans. 



From Baclayon, Island of Bohol, in seventeen fathoms water. 



27. Cancellaria melanostoma (pi. xcv. f. 78), So^verby 

 junr Pro. Zool. Soc, 1848. 



C. testa ovali, longitudinahter striis noduKferis et transverse 

 striis alternatis minute decussata; spira acuminata, anfractibus 

 paucis, rotundatis ; apertura ovali, magna, interne costata ; labio 

 externo denticulato ; columella expansa, antice granulata, tripli- 

 cata : colore pallide fulvo fusco, late fasciato ; labio externo bi-ma- 

 culato, columella fusca nigricante. 



The smoothness of the striae, the more oval form, the peculiar 

 dark colour and granulations of the columella serve to distinguish 

 this species fi-om the preceding. Mr. Cuming possesses the only 

 specimen we have seen. 



From an unknown locality. 



28. Cancellaria oblonga (pi. xciii. f. 25), Sowerhy, Tanc. 

 Cat. appendix, p. 15. 



C. testa oblongo-ovali, striis transversis et longitudinaHter mi- 

 nutissime decussata ; spira acuminata, sutura profunda ; apertura 

 oblonga, interne costata; labio externo denticulato; columella 

 friplicata, antice rugulosa : colore pallide fulvo, fasciis fuscis cincto. 



Much more elongated and more minutely striated than C. elegans. 



Found in coarse sand in the Straits of Maccassar. 



29. Cancellaria tessellata (pi. xciii. f. 32), Soiverhy, 

 Pro. Zool. Soc, 1832. p. 51. 



C. testa ovali, oblonga, minute cancellata ; apertura interne 

 costata ; labio externo interne dentato ; columella crassa, ex- 

 pansa, bi-plicata : colore in macuHs fuscis quadratis disposito. 



