dredged up from Bass's Straits. 383 



1873, pi. xxix.), which, however, branch off in great plurality 

 from a short thick stipes and are not single and sessile as in Axos 

 anchorata ; but the specimens from which I have been obliged 

 to take my description are so imperfect that, although there is 

 sufficient to establish the species, especially in the peculiar 

 form of the equianchorate, further observation is necessary for 

 its completion; and such is the case with the following frag- 

 ment, which amounts to nothing more than 3 inches of the 

 stem, with neither root nor termination, but yet again pre- 

 sents sufiicient for specific determination, and may be de- 

 scribed under the proposed designation of ^^ jibulata''^ as 

 follows : — 



Axos fibulatay n. sp. 

 (PL XVIII. fig. 4, a-c.) 



In general form and structure this species appears to have 

 been the same as the foregoing, differing only in its spicula- 

 tion, which consists of two kinds of spicules, viz. : — 1, skeleton-, 

 acerate, curved, fusiform, gradually sharp-pointed, smooth, 

 1-11 1th by 1 -2400th inch in its greatest dimensions (fig. 4, a) ; 

 2, flesh-spicule, very minute, simple, bihamate [fibula)^ 

 l-2400th inch long (fig. 4, Z», c). Spicules arranged as in the 

 foregoing species. Size of specimen, including the bends of 

 its contorted condition, about 4 inches long by \ inch in dia- 

 meter. 



Hah. Marine. 



Log. Bass's Straits, South Australia. 



Ohs. This, as before stated, is a very poor specimen and 

 requires even still more observation to complete its description 

 than that of A. anchorata, especially as the bihamate is simple 

 and therefore does not afford the peculiar character of the 

 equianchorate in A. anchorata. 



Following is the sup])lementary list of Foraminifera and 

 Spongida obtained from dredgings in the Gulf of Manaar and 

 the sea in the vicinity of the Basse Rocks, together with one 

 of the Spongida dredged in Bass's Straits, South Australia. 



Sjpecimens from the G-idf of Manaar and the Basse Bocks 

 indicated by the abbreviations G. M. afid B. R. respec- 

 tively/. 



FORAMINIFERA. 



Polytrema miuiaceum. Gr. M. Rotalia spiculotesta. G. M. and 



cylindriciim. G. M. B. R. 



C'arpeuteria utricularis. G. M. arenacea, n. sp. G. M. and 



Gypsina melobesioides. G. M. B. R. 



Holocladiua pustulifera. G. M. 



