347 — 



Ungenau beschriebene Arten : 



Cliaetonotus (?) longicaudatus Tatem 1867. 

 (Fig. 00.) 



Chaetonotus longicaudatus Tafem (i); Nr. 57, p. 251, 252, 

 tab. X. fig. 1. 



Chaetonotus longicaudatus Tatem (-); Zelinka C., L889, 

 Nr. 72, p. 147-148, fig. 10. 



(2) «Chaetonotus longicaudatus (mihi) is by no means unrommon in some 

 of the ponds in the neighbourhood of Reading, and is altogether an élégant 

 créature in its proportions and movements, and, as seen in the cage stealing 

 through the various patches of decaying vegetable matter, on which it feeds, 

 remarkably resembles some of the viverine animais. 



The body is smooth, elongated, and but little dilated at the posterior 

 extremity above the foot; the neck encircled by a ruff of reflexed setae; head 

 slightly trifoliate; mouth infundibuliform, suctorial; œsophagus straight, 

 longitudinally plicate (obvious enough when observed in the act of swallow- 

 ing comparatively large masses of decaying vegetable matter); stomach on 

 elongated cône, terminating in a short rectum and anus, opening just above 

 and between the toes, which are very long and annulate; rotatory organ 

 circular, abdominal, as in the other species of the genus; length 1/80 to 

 I 400. The figure which accompanies this is X 380.» 



Fig. 60. — Chaetonotus (?) longicaudatus Tatem. (Nach Tatem, 

 aus Zelinka.) 175 : 1. 



