ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 369 



intestinal nerve-endings, and to the view that the nervous troubles are 

 due to toxins. Removal of the worms is sometimes followed by a 

 disappearance of the nervous trouble. The author experimented with 

 extracts of Platyhelminthes and Nematodes and found that these brought 

 on nervous troubles. His fingers, nose, and eyes were affected, which 

 points to the entrance of toxins through the skin and to their being 

 volatile. The phenomena of anaphylaxis were clearly observed. The 

 toxins do not differ in constitution from albuminoid substances in 

 general. 



New Trematode from Terrapin.* — F. D. Barker and — Parsons 

 describe Cotylaspis cokeri sp. n., a new Aspidobothrid Trematode from 

 Lesseur's terrapin. The living specimens were light red in colour. 

 " The body resembles a miniature turtle, with its anterior slender, very 

 active and distensible neck region attached to the dorsal and anterior 

 portion of the much thickened oval body region." The neck is as long as 

 the body. The entire worm measures 1 ■ 2-1 • 5 mm. long by " 6 mm. wide. 

 The ventral region is covered by a shield which bears three rows of 

 suckers. The median row has twelve, the lateral rows ten each. In 

 a hundred specimens the number was constant, save in one which had 

 eleven acetabula in the marginal rows and thirteen in the median 

 row, thirty-five in all instead of thirty-two. Twenty-two marginal 

 sense-organs are present — small clear oval areas at the outer marginal 

 end of each ridge between two suckers. The internal characters are 

 also described. 



Terrestrial Planarians from Abor Country.f — R. H. Whitehouse 

 reports on an interesting collection made by Mr. Kemp in the Abor 

 Country. It includes five new species of Bipalium, and one new species 

 of each of the genera Placocephalus, Pelmatoplana and Cotyloplana. 

 The size of Bipalium giganteurn sp. n. is remarkable, for the largest 

 attained a length of 217 mm. and a breadth of 15 mm., and that in a 

 spirit specimen. 



Effect of Section in Planarians. :}: — C. M. Child finds that a 

 temporary increase in the rate of metabolism, a " stimulation " lasting 

 for several hours at least, results from the act of section. The temporary 

 increase in the rate of metabolism varies in amount inversely as the 

 length of the piece, long pieces being very slightly or not at all stimu- 

 lated and short pieces strongly stimulated. The increase is least in 

 front, greatest behind — the differences being expressions of the "axial 

 gradient." The shorter or the more posterior the piece, the greater the 

 degree of stimulation and the less the frequency of head -formation. 

 After the increase in the rate of metabolism there comes a gradual 

 fall. Twelve hours after section the rate may be as low as, or lower 

 than, that in corresponding regions of intact animals. After three or 

 four days the rate of metabolism begins to rise as reconstitution pro- 

 ceeds. The rise is relatively permanent and constitutes physiological 



* Trans. Amer. ilicr. Soc, xxxiii. (1914) pp. 261-2." 



t Records Indian Museum, viii. (1914) pp. 455-64 (2 pis.). 



J -Journ. Exper. Zool., xvi. (1914) pp. 412-41 (4 figs.). 



