310 Dr. W. C. ]\rintosh on the 



Family Escharidse. 



Genus Eschaea, Kay. 



Eschara Skenei, Ellis & Sol. ; Busk, Catal. p. 88, pi. 122. 



A remarkably beautiful specimen on Cyprina islandica from 

 the coralline ground. 



Suborder CYCLOSTOMATA, Busk. 



Family Tubuliporidae, Jolinst. 



Genus Tubulipora, Lamarck. 



TuhuUpora serpens^ L. ; Jolmst. Brit. Zooph. p. 275, 

 pi. 47. f. 4-6. 



On zoophytes and shells from deep water ; very abundant 

 and characteristic. 



Genus Alecto, Lamx. 



Alecto granulata, M.-Ed. ; Johnst. Brit. Zooph. p. 280, 

 pi. 49. f . 1 & 2. 



On stones and shells from deep water ; not rare. 



Family Diastoporidse, Busk. 

 Genus Diastopora, 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 patwa, Lamarck ; Hincks, Catal. Zooph., 

 loc. cit. p. 468. 



Abundant on corallines and shells from deep water, especially 

 on Mytilus inodiolus. 



Genus Heteroporella, Busk. 

 Heteroporella Mspida^ Flem. ; Hincks, loc. cit. p. 469. 

 On stones and shells from deep water ; rather rare. 



Family Crisiadae. 

 Genus Crisia, Lamx. 

 Crisia eburneay L.; Johnst. Brit. Zooph. p. 283,'pl. 50. f. 3 & 4. 

 On the under surface of stones between tide-marks, often 



