﻿SPONGK.S. KALLMANN. 



•73 



covered with numerous prominences of somewhat irrej^ular 

 shape, but of fairly uniform size, whilst the inner surface is 

 uneven, thouijh devoid of any pronounced inequalities. In the 

 remaining specimens the inner surface is quite free frtjm ir- 

 regularities of any kind, whilst the outer surface is merely 

 lumpv or provided with rounded tubercular elevations of larger 

 size and relatively lesser number than in the type. FinalK in 

 the type specimen (sic) of K. silcx, both surfaces are plain. 

 This last-mentioned is merely a small piece of the original 

 including portion of tlie niai-gin, 

 which is sinuous ; it \\ as e\ idently 

 taken from a "meandriform lamella" 

 about h mm. thick. The "minute 

 circular oscula" confined to the inner 

 surface, which Lendenfeld mentions 

 for K. c/c <,>•(/ H.v, are not discernible in 

 the present condition of the speci- 

 mens. The consistency is \ery hard 

 and firm, and the texture coarse and 

 fibrous. The statement of W'hite- 

 legge that the sponge (as represented 

 in a macerated specimen) resembles 

 a "washed-out (lioichopsis'' is 

 meaningless. Lendenfeld 's descrip- 

 tion of the main skeleton is fairlv 

 correct, though slight amendments 

 are necessary. He says: — "The 

 skeleton consists of a dense network 

 of exceedingly thick fibres. The 

 main fibres, which extend longi- 

 tudinally from the base of the sponge 

 to the margin of the cup are ._' mm. 

 thick. The connecting trans\erse 

 fibres have an average diameter of 

 .07 mm. The meshes of the network Oxea (showinc 



are .48 mm. \v\de. The fibres consist ''tag^s '" ^^^^i'-P^^f g^ \"^o 

 r 1 ,- , • , ,, stroiievla). b Acantho- 



ot dense masses ol oxea which are all ^^ y^ ^' 



parallel and disposed longitudin- 

 ally." His description of the skeleton in K. silex is very 

 slight, and moreover (if the ostensible type-specimen is, as all 

 the e\ idence indicates, genuine) inaccurate. It is as lollows:— 

 "The skeleton consists of spiculc-bundles ._' mm. thick, com- 

 posed of large and stout styli. There is hardly any spongin 

 discernible. The fibres are echinated l:)y spined styli .09 mm. 

 long and .008 thick." The use of the Avord "styli" in the 

 latter connection- is evidentlv an error, since Lendenfeld de- 

 fines the "enus Kiilvkctttcroti as beine distinsjuished in the 



E. elcgiuis. a 

 various 



