1 1 



Basis findes et Lag ai kortei'e Spikier, hvis Spidser rager 

 frit ml paa Underfladen og laugs Randen er længere end 

 forresten paa tJnderfladen og saaledes danne Spikelkrandsen 

 langs Banden (Tab. II. Fig. 7). 



Findested. 



Station ukjendt. 



Suberites glabra, u. sp. 



En langagtig, rund Stilk, der kun bestaar af tr°ac 

 Naale, som danner et Maskeværk uden bestemt Anordning 

 at' Maskerne. 1 Overfladen sidder kortere Naale psrpen- 

 dikulært paa samme (Tal.. II. Fig. ;>). 



Findested. 



Station ukjendt. 



surface, ami at the base, there is found a layer of shorter 

 spicules, whose points, freely, project on the inferior surface 

 and along the margin, in which last named situation they are 

 longer than on the inferior surface, otherwise, and produce, 

 tlins. spicular wreaths along the margin (PI. II. Fig. 7). 



Habitat. 



No record. 



Suberites glabra, n. sp. 



An elongate, round stem, which is composed, exclus- 

 ively, of fr"m- spicules, forming a reticulation without any 

 definite regularity of the meshes. On the surface, short 

 spicules appear, placed perpendicularly in it (PI. II. 

 Fig. 9). 



Habitat. 



No record. 



Desmacidinæ. 



Ligeoverfor disse Svampe ei- jeg i stor Forlegenhed, 

 da jeg ikke med Sikkerhed ved at henføre de forskjellige 

 Former til de af Vosmaer ' opstillede Genera. Jeg be- 

 gynder med nogle Svampe, sum jeg antager horer til 

 Myxilla. 



Myxilla exigua. n. sp. 



Et tyndt, hvidligi Lag paa Skallen af en bivalv 

 (Terebratula?); det bestaar af et forvirret Net af trac og 

 trac sp. Naale. mellem hvilke der tindes talrige anc-anc, '■'< 

 (Tah. II. Fig. 2). 



Findested. 



Station ukjendt. 



Desmacidinæ. 



In regard to these sponges. I find myself in a great 



difficulty: because, I do not see my way. clearly, to assign 



with certainty, the various forms, to the genera established 



by Vosmaer '. I commence with a few sponges which I 

 suppose to pertain to Myxilla. 



Myxilla exigua, n. sp. 



A thin, whitish layer, on the shell of a bivalve (Tere- 

 bratula?). It consists of a confused reticulation øf trac 

 and true sp. spicules, between which numerous anc-anc 3, 

 spicules appear (PI. II. fig. 2). 



Habitat. 



No record. 



1 Vosmaer: The family of the Desmacidinæ. — Notes from the 

 Levden Museum. Vol. Tf. 1K79. 



1 Vosmaer. The family of the Desmacidinæ. — Notes from tin- 

 Leyden Museum. Vol. TI. 1879. 



