50 



— Tellina cornea, Lin. — Tellina rivalis, 

 Mull. — Cardium corneum, Mont. 

 The animal is described by Jenyns. 

 Ditches in the Curraghs, abundant. 

 2. calyculata. 



Cyclas calyculata, Drap. — '' Cyclas tubercu- 

 lata, Alt.''^ (Menke.) — C. lacustris, Turt. 

 — Cardium lacustre, Mont. — Tellina lacus- 

 tris, Lin. 

 Pools in the northern parishes. The animal is 

 described by Jenyns. 



LXXIV. Pisidium, P/eiJer. 

 1. pulchellum. 



Pisidium pulchellum, Jenyns. — " Pera pul- 

 chella. Leach,'''' Jenyns. — Pisidium fontin- 

 ale, Brown. — Cyclas fontinalis, Alder, 

 The animal is described by Jenyns. 

 Ditches and springs, especially in the north. 



LXXV. Astarte, Sowerby.* 

 I. danmoniensis. 



Artarte danmoniae,i^/em. — Venus danmonien- 

 sis, Mont. — Crassina danmoniensis, Lam, 

 — Crassina sulcata, Flem. — Astarte incras- 

 sata, De la Jonk. — Venus incrassata, 



• M. de la Jonkaire says, that the teeth of Astarte are ordi- 

 narily striated, as in Trigonia. (Mem. de la Soc. d'Hist. Nat. de 

 Paris, vol. i. p. 127.) I have never found such to be the case 

 with the British species. 



