4 "endeavour" scientific results. 



The specimens from the Great Australian Bight were received 

 by me in January 1012, and the others at various times prior to 

 that date. Much of the delay in presenting this Report has been 

 due to the time occupied in correspondence with friends in 

 Europe, especially Dr. A. Billard, of Paris, and Dr. C. 

 Hartiaub, of Heligoland, both of whom I have to thank for their 

 kindness in comparing specimens with type forms in European 

 Museums. 



[I.— DESCRIPTION OF THE GENERA AND SPFC1KS. 

 Family CAMPANULARIID^E. 

 Genus Campanularia, Lamarck. 



CaMPANULAUIA PUMILA, 8p. line. 



(Plate i„ figs. 6—8.) 



Hydrorhiza slender, filiform, overrunning other hydroids and 

 giving origin at intervals to short very slender peduncles, more 

 or less irregularly undulated at both ends, and sometimes in the 

 intermediate portions ; a more distinct spherical segment just 

 below the hydrotheca. 



Hydrotheca 1 small, cylindrical, constricted just above the base, 

 mouth with about eight truncate teeth, the truncate ends very 

 slightly sinuated ; teeth a little incurved, peristome often doubled 

 or tripled. 



Gonosome : — ? 



This exceedingly delicate species has unbranched peduncles 

 of varying length, commonly about as long as the hydrotheca^, 

 and not very strongly undulated. The hydrothecse are from 

 •37 to '44 mm. in length, and "12 to '15 in width, the length 

 depending largely on the number of successive renewals of the 

 border. In one calycle the first peristome was about the middle 

 of its length, and the second immediately below the third and 

 final one. In each case the teeth (if the second or third circlet 

 corresponded in number and position with those of the original 

 series. 



On account of the delicacy and the shrivelled condition of the 

 hydrothecse I was not able in all cases to count the marginal 

 teeth, In two or three the number was undoubtedly eight, 

 another seemed to have seven, while in no case could the number 

 have varied much from these. In regard to form, the denticulat ion 

 of the border is precisely as that of ('. spinulosa would be if the 

 little spines, which in that species spring from the angles of the 

 teeth, were wanting. At the "floor" of the hydrotheca there is 

 a circlet of excessively minute bright points. 



/,<»•.: — Great Australian Bight, parasitic on Syntheciwm 

 mhventricosum, 40 to 100 fathoms. 



