ENVIRONS OF NICE.— APPENDIX. 



459 



III. 



Fossil Testacea found on the Peninsula of St Hospice. 

 MULTIVALVE, 



CHITON. 



1. foliatus. Shell very convex, valves strongly 

 PI. IX. f. 1. sulcated concentrically ; the ante- 

 rior valve rising into a knob. The 

 upper part of the shell is foliated 



longitudinally ; length about six- 

 eighths of an inch. 



Only two anterior, and one po- 

 sterior valve of this shell were 

 found. 



BIVALVE. 



MYA. 



1. elongata. Shell concentrically wrinkled, and 

 PI. IX. f. 2. with longitudinal divergent strias. 



Hinge with a large, broad, ele- 

 vated tooth in the left valve ; 

 right valve with a small tooth 

 and socket ; into which the tooth 

 of the opposite valve fits. Um- 

 bo placed very much to one side. 



2. Trinitea. Vid. p. 456. 



3. sinuosa. Shell somewhat wedge-shaped and 

 PI. IX. f. 4. truncated on both ends ; hinge 



with a small tooth. Obsoletely 

 wrinkled, with a waved margin. 

 Length fths, breadth fths of 

 an inch. 



4. punctatus. 

 PL IX. f. 5. 



Shell somewhat triangular, de- 



pressed, very glossy, sub-pellu- 

 cid, diaphanous, and smooth; 

 with obsolete concentric wrinkles; 

 towards each end, it is very 

 finely punctured, but perfectly 

 smooth in the centre ; left valve 

 with one central and one re- 

 mote tooth ; right valve with 

 two central and one remote 

 tooth. Umbo sharp, and turn- 

 ed to one side. There is a 

 slight triangular depression, 

 commencing about the venter, 

 and terminating at the base. 

 Length fths of an inch, 

 breadth 

 5. insequivalvis. Vid. p. 



fths 

 456. 



TELLINA. 



1. Donacina. Montagu, Test. Br. p. 58. t. 27. 

 f. 3.— Dillwyn's Conch, p. 89- 



3 M 2 



2. rotundata 



3. densus. 

 PI. IX. f. 6, 



4. lactea. 



5. divaricata. 



6. radiata. 



7. dentata. 



8. obsoleta. 

 PI. IX. f. 7. 



PL IX. f 8. 



— Brocchi, p. 512. t. 12. f. 5. 

 T. subcarinata. 

 Vid. p. 456. 



Shell greyish-white, sub-orbicu- 

 lar, smooth, gibbous, and pel- 

 lucid. Hinge with two teeth, 

 and an internal groove in which 

 the cartilage is fixed. Length 

 fths, breadth the same. It 

 is a strong and rather convex 

 shell; resembling the tellina 

 lactea, but differing from it in 

 being much stronger, smoother, 

 and the umbo being nearer the 

 centre. 

 Vid. p. 456. 

 Vid. p. 455. 



Wood's Conch, p. 158. t. 38. f. 2, 



& 3. — Dillwyn's Conch, p. 83.' 



Wood's Conch, p. 195. t. 46. f. 6. 



— Dillwyn's Conch, p. 102. 

 Shell ovate, anterior end some- 

 what angulated, posterior end 

 rounded, convex, pellucid, and 

 glossy, with transverse, sharp, 

 minute ridges ; and a bifid pri- 

 mary tooth in each valve. The 

 left valve with lateral teeth. 

 Outside wine-yellow, with nu- 

 merous, divergent, obsolete rays 

 of a cream-yellow, which be- 

 come darker as they approach 

 the base. Inside glossy, with 

 a large spot of straw-yellow. 



Mr Allan found a recent I 



specimen of this beautiful shell 



in the Mediterranean, at Nice. 



In the recent species, the rays 



are 



