196 Records of the Indian Museum. [Vol. VI, 



elongate ; distal buds produced 

 in profusion by the adult zooe- 

 cia; lateral basal buds rarely 

 suppressed . . . . V. pavida. 



II. Young zooecia usually quadrate, 

 adult zooecia quadrate or circular 

 at the tip ; basal tubules often 

 short ; distal buds produced^ 

 often sparingly, by both young 

 and adult zooecia; lateral basal 

 buds present or absent . . V . bengalensis. 



III. Zooecia always circular at the tip ; 

 basal tubules short ; distal buds 

 often absent, never produced 

 in profusion; lateral basal buds 

 usually absent . . . . V . symhiotica. 



Victor ella mulleri (Kraepelin). 



(PI. xiii, fig. 4.) 



Paludicella miilleri, Kraepelin, Die deiitschen Siisswasser-Bryozoen, 

 i, P- 159. figs. A, B (1887). 



V. miilleri is the most distinct of the four forms and was ori- 

 ginally described by Dr. K. Kraepelin as a species of Paludicella. 

 I have, however, been enabled by the kindness of Dr. Kraepelin 

 and Dr. W. Michaelsen to examine specimens from the type loca- 

 lity (Greifswald, Germany), in which they occurred together with 

 examples of an undoubted Victor ella. On a careful examination 

 the latter were found to differ from specimens of V. pavida from 

 the type locality in England and also from other German localities 

 in having parietal muscles at the tip of the zooecium (pi. xiii, 

 figs. 4,5). A further search on the leaves to which the form miilleri 

 was attached also revealed intermediate stages between that form 

 and the Victorella associated with it. I have therefore no doubt 

 that Kraepelin's types were merely young zoaria of a species of 

 Victorella to which the specific name miilleri must be applied. In 

 the young zooecium the cross-section of the distal part is almost 

 circular, but in the adult zooecium it becomes quadrate. Appar- 

 ently young zooecia in this species do not produce distal buds, 

 which are borne in profusion by the zooecia of well-grown colonies. 



V. miilleri has only been found in Germany (Ryckflusse at 

 Greifswald) in brackish water. 



Victorella pavida, Kent. 



(PI. xiii, fig. 5.) 



This species only dift'ers from V. miilleri in the following char- 

 acters : — 



