100 CATALOGUE OF THE ZOOPHYTES OF 



ston lived, liis advice, ever ready, would have been greatly prized 

 on the present occasion. As it is, this small contribution to his 

 favourite science, and in a field where he has already done so 

 much, can only now be offered as a tribute to his memory. 



CATALOGUE. 



ZOOPHYTA. 



Clas8. AN"TH0Z0A, Ehrenberg. 



Order. HYDROIDA, Johnston. 



Family. TUBULAEIADzE, Van Beneden. 



1. CLAVA. Gmdin. 

 1. C. MULTICORNIS, Fovsk. 



Johns. Brit. Zooph., 30, t. i., f. 1—3. 

 In rock-pools, on stones, Fuci, and Corallines, between tide- 

 marks ; not uncommon. 



2. VORTICLAVA, nov. Gen. 

 Polype linear-cylindrical or clavate, soft, naked, affixed at 

 the base, solitary ? Head terminal ; tentacles in two rows, 

 stout, dissimilar, the upper row capitate. 

 This genus differs from Clava in having the tentacles arranged 

 in two distinct rows or whorls, forming a regular head, and in 

 their being of two kinds. From Hydractinia it differs in having 

 two rows of tentacles, as well as in the absence of an encrusting 

 base ; and from Coryne in not having a corneous sheath. This 

 latter character distinguishes it also from the Stauridia of 

 Dujardin, to which it appears to be nearly allied. 



1. y. HUMILIS, 11. siJ. PI. III. fig. 1 — 3.* 



Body white, semi-transparent, nearly of equal thickness 

 throughoxit: upper tentacles 5, short and stout; lower 

 tentacles 10, about three times the length of the upper. 

 Length of body -f^ in. 



* An account of the new genera and species of this Catalog-ue was communicated to 

 the British Association Meeting at Cheltenham, and has appeared partly in the " An- 

 nals of Natural History," and partly in the " Microscopical Journal." 



