206 Dr. W. C. M'Intosh on the Zoojjhytes of St. Andrews. 



shells cast on shore after storms. The outer lip in the shells 

 inhabited by hermit crabs is frequently prolonged into a horny 

 membrane, as mentioned by Dr. Johnston. 



Fam. 9. Eudendriidae. 



Genus Eudendrium, Ehrenberg. 



Eudendrium ranxeum^ Pallas ; Hincks, Brit. H. Z. 

 vol. i. p. 80. 



Plentiful in the deep water of the bay, attached to shells and 

 masses of Balani and Serjyidcp. A fine specimen measured 

 9 inches high, and the breadth of the branched portion was 

 8 inches. 



Eudendrium capillare^ Alder ; Hincks, Brit. H. Z. 

 vol. i. p. 84. 



Fine tufts are occasionally found on the stems of Anten- 

 nularia ramosa, interwoven with other zoophytes, from deep 

 water. The specimens had no short branches ; all were much 

 elongated, and the polyps terminal. Some slight rings existed 

 here and there on the main stems at the base ; those at the 

 origin of each branch are very distinct. 



Fam. 11. Tubulariidae. 

 Genus Tubularia, Linnjeus. 



Tubularia indivisa, L. ; Hincks, Brit. H. Z. 

 vol. i. p. 115. 



Common in deep water. One of the largest specimens 

 springs from an agglutinated basis of the valves of Pecten 

 opercularis and gravel, eight inches in diameter, and the 

 gigantic tuft had tubes 11 inches in height. It also sometimes 

 fixes the valves of a living Mytilus modiolus so as almost to 

 prevent motion. 



Tubularia coronata^ Abildgaard ; Hincks, Brit. H. Z. 

 vol. i. p. 119. 



Abundant in deep water. I am obliged to Prof. Allman for 

 discriminating wrinkled specimens of this species, in 1863. 



Suborder II. THECAPHORA. 



Fam. 1. Campanulariidae. 

 Genus Clytia, Lamouroux. 

 Clytia JoJinstoni^ Alder ; Hincks, Brit. H. Z. vol. i. p. 143. 

 Abundant on Alcyonidium hirsutum and seaweeds in the 



