UNDETERMINED STAÜROCALYPTÜR. 231 



UNDETERMINED STAUROCALYPTUS. 



Here I wish to mention three specimens («-r) which I have 

 studied but prefer to leave unnamed, tliough placing them 

 provisionally under Staurocalyptus. They are all very small and 

 therefore very jDrobably 3'oung specimens in which the characters 

 may not have been fully developed. 



Sfam'ocfdypttfs sr. o.. 



(Figures already published in Contrib., III., PL III., figs. l-G). 



This little specimen (S. C. M. No. 437) was found on a dead 

 Hexaclinella lorica from Outside Okinose, together with Leu- 

 copsacus scoliodocus, Lannginella pupa, etc. The body of a barrel- 

 like shape is somewhat larger than a grain of rice. It shows at 

 the lower end a rigid basidictyonal mass measuring about 2 mm. 

 across. From that mass, as also from the body proper, there 

 spring out some fine prostat needles of a considerable length, 

 mostly directed obliquely upwards and outwards. The dermal 

 surface is smooth. 



The parenchymalia are chiefly diactins under 14/-« in thickness. 

 In most of them the spicular center is marked externally by an 

 annular swelling or by two or four knobs arranged in the usual 

 manner. It seemed to me that the subterminal roughness extended 

 over a relatively greater area than usual, some of the shorter 

 diactins showing sparsely distributed obsolete microtubercles 

 nearly all over them. Highly remarkable is the fact that some 

 of the parenchymalia are apparently hexactinic. The parenchyjnal 



