<:OM;AI> FI{ISTI-:IT. s ^<- ARCT. EXP. FUAM 



Tin- nt-i-rnh' -picnle- are very long, and generally straight. though 

 occasionally slightly curved. 



AccordiiiL: In I'.nwerhank lllril. Spmigiada-. \'nl. IV) the geographical 

 distribution of tliis sponge i- < iivenland. Spitsbergen, Norway, the Faroe 

 Inlands. Newfoundland, tin- (livat licit and Heligoland (There is no 

 calci-pongia from the \\est coasl of "Greenland in the state zoological 

 innseuin in Stockholm.) I wa- at first inclined to helieve that this 

 -police might he a new species, on account of the very small number 

 of quadriradiate spiniles. or possibly a variable form of Ascandra 

 niiruliilis KIM-TIM (Sponges from the Atlantic and Arctic Oceans and 

 the lleh.-mg Sea, p. ioii. ,,|. 22. figs. 313, pi. 26, figs. 1^2). but the 

 ah-eni-e of the >maller acerate spicules (loc. cit. iii;s. "> cV ('). and the 

 L;I.;I| resemblance to Sijcdiidra ciliata, II. induced me to identify this 



rs with the above-mentioned S. ciliata. 



CJiR-lina Grant. 



Chnlina limbatn Bow. 



Spongia, limbata, MONTAGU (Vern. Mem. II, 111. pi. l.\ 

 li.ns. 2 ^ 3). 



Chalina limbatn Bowerbank (Monograph Brit. Spongiadae II. 

 P. 373). 



There are two specimens of this species in the collection from Miles- 

 mere Land, probably two fragments of one specimen. The larger of the 

 two piece- i- about 40 mm. in length, and 22mm. in breadth, the thick- 

 ness being 20 mm. It is furnished with only one osculum, the diameter 

 of which is .'J mm. The smaller of the specimens has two oscula. both 

 of \\hich measure 2 mm. in diameter. The consistency of the spongr 

 i- exceeding!) -oft. The surface is slightly hispid, owing to the pro- 

 jection ul the dermal spicules. The dermal membrane is very thin and 

 pellucid. The -aivmle i> ralher abundant, and of a brown colour. The 

 p'lie- are -..-altered all over the surface. 



The colour ol the .-pongr. bolh when preserved in spirit and when 

 drv. i- h-hl brown. 



The skeleton coii-isK of spicnlous fibres. The >picules of the softer 

 membranes and the fibre-, are -imilar; namely, dcrmd 1 . slightly curved 

 and short pointed. There are very few acnale spicnle-. 



I he above-described -penmen-, agree fairly well with Bowerbank's 



descripti ! ('Imliitu thnl><il<i How, but the fibres of the specimens 



