38 



CLASS. ACEPHALA. 

 ACEPHALA TEST ACE A. 



Order. Branchiopoda. 



Fam. Craniadoe. 



LY. Orbicula, Cuv. 

 1. norvemca. 



o 



Orbicula norvegica, Lam. — Criopus anomaluSy 

 Flem, — Crania personata, Low. — Discina 

 ostrasoides, Turt. Lam. ? — Patella anomala, 

 Mull. — Patella dlstorta, Flem. (Ed. Enc.) 

 — Anomia turbinata, Dillwyn, 



The animal is figured by Muller. 



A single specimen dredged at Ballaugh, Oct. 1834. 



Order. Lamellibranchia. 

 Fam. Ostracea. 



LVI. Anomia, Lin. 



1. epbippium, Lin. 



The animal is given by Poli, 

 On shells, &c. Not uncommon. 



2. Squamula. 



Anomia squamula, Lin. — A. polymorpha, 

 var. PhilL 

 On fucij common. 



