Catalogue of Non-Calcareous Sponges. 239 



The sponge consists of a massive, rounded base, from which 

 spring numerous upright, finger-like processes. The dermal 

 membrane, with its abundant spicules, is supported over large 

 subdermal cavities by columns of spicules radiating from a dense 

 axial skeleton in the digitiform processes. The spicules are all, 

 or nearly all, stylote, and of variable size, sometimes all of about 

 the same diameter, sometimes with some of the internal spicules 

 much stouter than the others. 



Mr. Carter himself points out the close resemblance of his 

 species to that of Bowerbank, as follows : — " The illustration of 

 C. penicillus (op. et I.e.) closely resembles in figure that of 

 Leucophlceus massalis, only the latter is more compact towards 

 the centre, but the form of the spicule is the same, viz., oaeate, 

 while the two other species of Ciocalypta present acerate spicules ;" 

 etc.* In face of these remarks I am unable to understand 

 why the genus Leucophlceus should have been erected, or why 

 Ciocalypta penicillus and Leucophkvus massalis should have been 

 both included as distinct species in the work on Mr. Bracebridge 

 Wilson's sponges. 



R.N. 379 (s. 8, 8 f.; "lemon-yellow "). 



B.M. sp. 55 (" Leucophlceus massalis, C." Reg. 86-12-15-82); 

 d. 92 {"Ciocalypta penicillus" Reg. 86-12-15-457). 



Ciocalypta tyleri, Bowerbank. 



Ciocalypta tyleri, Bowerbank, Proc. Zool. Soc. Lond., 1873, p. 

 21, pi. iv., figs. 9-12. 



Ciocalypta tyleri, Carter, A.M.N. H., November, 1885, p. 366. 



The sponge is massive with digitiform processes, like C. 

 penicillus, but with all or may of the spicules oxeote. 



Specimens intermediate in spiculation between C. penicillus and 

 C. tyleri are met with. B.M. sp. 5 If is very remarkable in this 

 respect and should perhaps form the type of a new species. It 

 has a mixture of very stout and very slender styli in the main 

 skeleton but only very slender oxea in the dermal skeleton. 



R.N. 585 (s. 1, 14 f.; "ochre-yellow"); 595 (x, 19 f.; 

 "primrose-yellow"); 810 (s. 5); 905 (s. 8); 949 (s. 9); 1089 

 (x A); 1133. 



* A.M.N.H., November, 1883, p. 326. 



t Labelled " Ciocalypta penicillus, Bk. P.P.H. 19 fms." Reg. 86-12-15-136. 



