158 



NOTES AND MEMORANDA. 



having very .long formidable-looking setae, to which he proposes to 

 give the name of Anurcea longispina, the long-spined Anuria. 



We have shown the description and drawing to Dr. Hudson, who 

 considers the claim of " new " to be properly made, though the draw- 

 ing is probably a little " free " as regards the internal organs. Not 

 having seen the animal ourselves, we are, of course, unable to do more 

 than reproduce the woodcut in facsimile. 



The description of the rotifer is as follows : — Lorica ovate- 

 cuneate, smooth on both the dorsal and ventral surfaces ; it has seven 

 frontal and one terminal spine ; the frontal spine situate on the 

 middle of the upper margin is about twice as long as the carapace ; 

 seen from above it is straight, from side arched ; those at the angles 

 are equal in length to the carapace, curved outwards and downwards ; 

 there is a short one on either side of the long central one, also two 

 short ones on the margin of the ventral surface ; they seem to form 

 ribs, nearly to the middle, designed to strengthen the ventral plate of 

 the lorica, so that it opens and shuts the front by a hinge-like motion 

 at the middle, similar to the lower shell of a Box turtle ; the terminal 

 spine is somewhat longer than the lorica, straight seen from above, 

 cynosuric in side view. The three long frontal spines when highly 

 magnified, always appear rough, like the surface of the carapace of 

 Ceratium longicorne ; the terminal one is always smooth. 



The buccal funnel situated in the lower middle part of the face 

 between the trochal lobes is deep and ciliated ; on its upper border is 

 a projecting conical lip well ciliated ; these cilia seem to be able to 

 close over the mouth to aid in the retention of the prey. The mallei 

 and incus of the mastax are easily made out, and are of the typical 

 form. (Esophagus short, digestive cavity clearly divided into a 

 capacious gastric expansion, and an intestine, or cloaca. The two 

 glands, one on either side of the oesophagus, are distinct, round in 

 one aspect, oblong in another. Eye large, round, red. Egg attached. 

 Length, including the spines, ^^ of an inch ; length of lorica, -j-f^ of 

 an inch. The male unknown. 



Professor Kellicott seems to have found them at all times, though 

 more abundant in autumn and winter. Like others of the family, the 

 female carries under the posterior part of the body " her unreasonably 

 large ovum, like an old-fashioned hen's egg." The case is so trans- 

 parent, that it affords a good example for the study of its structure. 



