420 DE. GWTN JEFFBETS ON SOME 



fathoms); Mediterranean ('Porcupine' Exped.); N.E. America; 

 N. Pacific (P. P. Carpenter): low water to 530 fathoms. 



Fossil. Pliocene : Monte Pellegrino, Sicily {Monterosato). 

 Post-tertiary : Fif eshire ; Norway. 



NnciNELLA 0VALI3, S. V. Wood. 



Pleurodon ovalis, S. V. Wood in Ann. N. H. 1840, p. 231, pi. xiii. f. 1. 



Nucinella miliaris, Mon. Crag Moll. 1861, p. 73, tab. x. f. 4, a-c. 



Hal. Korea, 40 fathoms ; a single valve. 



Fossil. Pliocene : Coralline Crag {S. V. Wood) ; Antwerp Crag 

 (Vanden JBroech). 



This remarkable little shell is certainly not the Nucinella mili- 

 aris of Deshayes, who repudiated Mr. Wood's identification of 

 his Crag species with the Paris-basin fossil. But the present dis- 

 covery in a recent or living state of a generic form supposed to 

 have been long ago extinct is extremely interesting. PeccJiiolia 

 (or Verticordia) acuticostata and several other species are common 

 to the Crag formation and the North Pacific. As the Eocene and 

 Pliocene species are not the same, I fear Mr. Wood's remarks 

 with respect to the capability of variation in species which may 

 be descended from more ancient forms are not quite applicable 

 to the present case. 



This species is a member of the A^xa family. I have retained 

 the name " ovalis,^'' originally given by Mr. Wood, although it is 

 inappropriate, signifying "belonging to an ovation;" the name 

 ought to have been ovata, meaning " egg-shaped." 



Lepton sulcatulfm, Jeffreys. 



L. sulcatulum, B. C. ii. p. 201 ; v. p. 177, pi. xxxi. f. 4. 



Hah. Korea, 35 fathoms ; several valves. Gruernsey ; Jersey ; 

 Etretat ; Tangier Bay ; coast of Tunis and Adventure Bank ; 

 Sicily ; Canary Isles : laminarian zone to 130 fathoms. 



LiSiEA RUBRA, Moiltagu. 



Cardium rubrum, Mont. Test. Brit. p. 83, tab. xxvii. f. 4. 



Lassea rubra, jB. C. ii. p. 219, pi. v. f. 2; v. p. 179, pi- xxxii. f. 1. 



JIab. Korea, 35-40 fathoms ; two or three valves and fragments. 

 Grreenland (Miis. Copenhagen) and Iceland to the Mediterranean 

 and Adriatic ; Canary Isles ; North and South Pacific ; Strait of 

 Magellan ; St. Paul and Amsterdam Isles : shore to 20 fathoms. 



Fossil. Coralline Crag and South-Italian Tertiaries ; Post-ter- 

 tiary at Portrush and in Norway. 



There are a few more or less obsolete synonyms. 



