New Sjjecies of Floscularia, &c. Bij Dr. C. T. Hudson. 611 



Floscularia edentata (?) Collins. 



In this species the lobes of the trochal disk have vanished 

 altogether. There is a wrinkled edge to the trochal cup, and a few 

 short setae rise from it, chiefly towards the dorsal and ventral sides ; 

 but its roughly circular outline has no elevations or hollows, and 

 lies in a plane transverse to the long axis of the body. This animal 

 was discovered by Mr. W. Dingwall, of Dundee, in July 1884, 

 near Blair Athol. I have only seen two specimens, but they were 

 exactly alike. It is a very stout Floscule with a broad body and 

 short foot, and the internal organs in each case were obscured by 

 the gorged stomach. In each case too there were eggs, both within 

 the body, and attached to the foot. The lobeless trochal cup in 

 no way resembled the delicate contrivance with which Apsilus 

 lentiformis fishes for its prey : it was a stout inverted cone, just 

 such a one as might be produced by trimming off the lobes of an 

 ordinary Floscule. 



I have considerable doubt as to whether this is a new species, 

 or whether it is Floscularia edentata, which was discovered by 

 Dr. F. Collins near Sandhurst about 1866, and described and 

 figured by him in ' Science-Gossip ' for 1872, p. 9. 



The figure and the description tally with Mr. Dingwall's Eotifer 

 in many respects ; but Dr. Collins says that his animal had neither 

 maxillary apparatus nor tube. The apparent absence of tube is of 

 little consequence, as this structure has been repeatedly overlooked 

 in Floscules that are well known to have it. The absence of maxil- 

 lary apparatus in a female rotifer is, however, a much greater diffi- 

 culty ; yet Dr. Collins says that his specimen had no teeth, and that 

 its food passed directly through the throat into a very capacious 

 stomach. He also adds, that each of his specimens laid an egg 

 while under observation, thus showing that they were females. 

 The length of his specimens was 1/80 in., and that of those sent 

 to me by Mr. Dingwall was 1/55. 



I am inclined to think that these Eotifera are the same, and so I 

 have retained Dr. Collins' name edentata; although it unluckily 

 asserts as a specific distinction a doubtful fact : probably the teeth, 

 which are at best small and inconspicuous, were lost to view in the 

 gorged intestine. 



Conochilus dossuarius n. sp. Bolton. Plate XLI. fig. 4. 



This ia another swimming tube-maker, and is also one of 

 Mr. Bolton's prizes. The specimens sent to me were all solitary, 

 and all swimming about in their cases ; but Mr. Bolton noticed 

 that the larger individuals have generally one or two younger 

 specimens adliering to them. 



