Mr. Jeffreys on British Mollusca. 123 



I found a single valve of this remarkable shell by dredging at Fal- 

 mouth in 1839 ; and it is (as Mr. Wood says) impossible to mistake 

 it for any other species, or even satisfactorily to allocate it generically. 

 In form it somewhat resembles a miniature Zetatia. 



Turtonia minuta, ii. 81. In dredged sand from Guernsey I found 

 a shell which apparently belongs to this species or to a variety of it. 

 It is, however, of an oblong rather than an oval form, is more than 

 double the size of ordinary specimens, and has dark streaks of pur- 

 plish brown radiating from the hinge to the margin. The teeth also 

 are conspicuous, and appear to agree with Loven's description of 

 northern specimens. It may be specifically different from T. minuta ; 

 but more specimens will probably be discovered, so as to clear up the 

 doubt. 



Lepton nitidum, var.jconvexum, ii. 102 and iv. 255 (Kellia nitida). 

 Plymouth and Guernsey. 



L. squamosum, ii. 98. Guernsey (Dr. Lukis & J. G. J.). 



L. Clarkise, iv. 255. Plymouth, Torbay, and Guernsey. 



Cyclas caliculata, ii. 115. Guernsey (Dr. Lukis). 



Pisidium pusillum, ii. 123. Guernsey and Jersey (Dr. Lukis). 

 M. Baudon, in a recent and elaborate essay on the French Pisidia, 

 unites P. cinereum of Alder and P. pulchellum of Jenyns as varieties 

 of P. Casertanum (Cardium Casertanum of Poli) ; and he doubts the 

 specific distinction of P. Recluzianum (Bourguignat), which is stated 

 to have been found at Belfast, and which M. Moquin-Tandon regards 

 as a variety of P. Henslowianum. 



Modiola phaseolina, ii. 186. Guernsey, rather common (Dr. Lukis 

 & J. G. J.). Falmouth (Mr. Webster). 



Crenella rhombea, ii. 208. Not uncommon in the coralline zone, 

 Guernsey (Dr. Lukis & J. G. J.) ; Torbay (Dr. Battersby & J. G.J.). 



Nucula radiata, ii. 220. Guernsey, with N. nucleus (Dr. Lukis & 

 J.G.J.). 



Pectunculus Glycimeris, ii. 245. A curious monstrosity has been 

 taken by Mr. Barlee in the Shetlands. The hinge-plate is flattened, 

 and wants every vestige of the usual cardinal teeth ; but, as a sub- 

 stitute, it has a rather strong lamina on each side locking into corre- 

 sponding grooves in the opposite valve. This peculiarity would, in 

 the opinion of some systematists, warrant the formation of a new 

 genus. The specimen, which is young, is also distorted in form. 



Pecten furtivus, (Loveri) Ind. Moll. Scand. p. 31. P. striatum, 

 var., ii. 284. I found a single valve of this unquestionably distinct 

 species in dredged sand from Guernsey ; and Mr. M 'Andrew has also 

 taken it on the coast of Spain. It is intermediate between P. striatus 

 and P. tigrinus, having the form of the first and sculpture of the last. 

 Southern specimens are much larger than those hitherto found in the 

 North. 



Acephala Palliobranchiata, or Brachiopoda. 



Terebratella (D' Orbigny ; Megerlea, King) truncata. Terebratula 

 truncata, Lamarck, vi. 1. p. 247. Anomia truncata, Chemn.viii.t. 77. 

 f. 701 a, b. Orthis truncata, Phil. ii. 69. Having examined Dr. 



