378 Mr. Jeffreys on the Testaceous Pneumonobranchous 



obtuse apex, and the deep umbilical perforation which is 

 not interrupted by the reflexure of the peristome. 



9. TiNCTUS. 



Animal nigrescenti-fuscum. Sustentaculum amplum. 



Testa ovata, subconica, ventricosa, fragilis, pellucida, gla- 

 bra (sub lente ut in L. elongato seriatim striatula), vio- 

 laceo-cornea, spir^ brevi, obtusA,. Anfractus 4 — 5. 

 Apertura ovata : peristomio vix postic^ retlexo. 



Long. 0.225.— Diam. 0.15. 



In a marshy piece of ground at Marino near Swansea. 

 It seems to be an intermediate species between the L. trun- 

 catulus and the following. 



10. Grayanus. 



Animal 



Testa iexh conica, subventricosa, acuminata, nitida, pel- 

 lucida, substriata, violascenti-cornea. Anfractus 6. 

 Apertura subovata : peristomio simplici, posticfe albo, 

 reflexiusculo. 



Long. 0.125.— Diam. 0.08. 



Sent me by Mr. J. S. Miller under the name of Assi- 

 minea Grayana, first given to it by Dr. Leach. From the 

 Greenwich marshes. 



II. Detritus. 

 Animal 



Testa ovata, subconica, subventricosa, solidula, alba, sub 

 lente spiraliter striatula. Anfractus 6, suturA vix 

 distinct^. Apertura oblongiuscula, labro intiis sub- 

 incrassato : peristomio tenui, subreflexo. 



Long. 



