52 LUCINIDiE. 



questionable, since he remarks, that it appears to him to be 

 " almost certainly the young of L. radula."" In Ireland it 

 is abundant in the bays of the Connemara coast, in from 

 eight to eighteen fathoms ; Birterbuy Bay and Arran 

 Island (Barlee) ; Red Bay, county Antrim, and Dublin 

 coast (Thompson) ; Cork harbour (Humphreys) ; Bantry 

 Bay (Miss M. Ball) ; off Cape Clear, in sixty fathoms 

 (M'Andrew). 



Abroad it ranges northward to Bergen, in Norway, and 

 southward throughout the Mediterranean. 



L. DivAKicATA, Linueeus. 



The striae diverging from each other at obtuse angles. 



Plate XXXV. fig. 3. 



Tellina divaricata, Linn. Syst. Nat. ed. 12, p. 1 120. — (not Turt. Conch. Diction, 

 p. 1 78.)— Spengler, Skrivt. Naturh. Selskab. vol. iv. part 2, 

 p. 117 (not vars). 

 Cardium araiatum, Mont, (not Reeve), Test. Brit. p. 85, pi. 3, f. 2. — Linn. 



Trans, vol. viii. p. 67. — Wood, General Conch, p. 213. 

 Lucina arcuata, Flem. Brit. Anim. p. 442. 



„ commutata, Philippi, Moll. Sicil. vol. i. p. 32, pi. 3, f. 15, and vol. ii. 



p. 25. 

 „ divaricata, Brit. Marine Conch, p. 76. 



This is not the divaricata of Chemnitz, Gmelin, and the 

 mass of writers, but, as Dr. Philippi suggests, the original 

 one indicated by Linnaeus in his Systema as an inhabitant 

 of the Mediterranean. 



The shape is rather obliquely suborbicular, the breadth a 

 little exceeding the length ; the valves are ventricose, and 

 occasionally even inflated, opaque (possibly from being only 

 dead specimens), of a dull white, and marked not only with 

 antiquated lines of growth, but with very crowded sub- 

 imbricated and somewhat radiatingly-divergent striulse, 



