94 LIVERPOOL MARINE BIOLOGY COMMITTEE REPORT. 



fragment Aths of an inch ; thickness of the wall, including 

 the cortex and the cloaca, ahout ith inch. 



L. F. M., No. 22. 4. 74. 7. Collected at Holyhead. 



This species in spiculation is very much like Leucogyima 

 gossei, Bowerbank, who, when he made a genus of it under 

 the name of ^'Leiicogyijsia^' in 1862 {Phil. Trans., p. 1095), 

 stated that he had not seen another species in Great Britain. 

 In 1858, Dr. J. E. Gray described and illustrated a cylindri- 

 cal branched species from Hong Kong, to which he gave 

 the name of Apliroceras alcicornis {Proc. Zool. Soc, Lond., 

 p. 114, pi. X, figs. 1 and 2), and in 1867 (Ih., p. 558) he 

 made a family for it under the name of " Aphrocerasidae." 

 This species is closely allied in form to that discovered by 

 Mr. Higgin, but differs greatly in structure ; while the struc- 

 ture of A. alcicornis is almost identical with that of Leiico- 

 gyima gossei, hence Haeckel has placed them among his 

 Leucones; but the structure of Aphroceras ramosa is Syconid, 

 and belongs to a genus which I have named ** Heteroina^^ in 

 my forthcoming description of the Calcareous Sponges from 

 the neighbourhood of Port Phillip Heads, S. Australia, sent 

 to me by Mr. Bracebridge Wilson ; meanwhile, Haeckel's 

 illustration of the '' Eadial-tuben," in his Sy cilia cylindrus, 

 represents it well {Die Kalkschivdnime, Atlas, taf. 43, fig. 6). 



Note. — A species of Sycandra, probably new to science, 

 was also dredged near Port Erin, Isle of Man. It has been 

 examined by Mr. Harvey Gibson, and his description and 

 fiofures will be found further on in this volume. — Ed, 



