MOLLUSCOIDA. 
49 
Family Escharidae. 
Genus Eschaea, Ray. 
Eschara SJcenei , Ellis & Sol. ; Busk, Catal. p. 88, pi. 122. 
A remarkably beautiful specimen on Cyprina islandica from 
the coralline ground. 
Suborder CYCLOSTOMATA, Busk. 
Family Tubuliporidae, Johnst. 
Genus Tubulipoea, Lamarck. 
Tubulipora serpens , L.; Johnst. Brit. Zooph. p. 275, 
pi. 47. f. 4-6. 
On zoophytes and shells from deep water; very abundant 
and characteristic. 
Genus Alecto, Lamx. 
Alecto qranulata , M.-Ed.; Johnst. Brit. Zooph. p. 280, 
pi. 49. f. 1 & 2. 
On stones and shells from deep water; not rare. 
Family Diastoporidae, Busk. 
Genus Diastopoea, Lamx. 
Diastopora obelia , Flem.; Johnst. Brit. Zooph. p. 277, 
pi. 47. f. 7 & 8. 
On shells and stones from deep water. 
Genus Patinella, Gray. 
Patinella patina , Lamarck ; Hincks, Catal. Zooph., 
loc. cit. p. 468. 
Abundant on corallines and shells from deep water, especially 
on Mytilus modiolus. 
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