ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 185 



Amphipod from the Transvaal. * — P. A. Methuen describes 

 Eucraiigonijx robertsi sp. n. from caves and a spring in the Transvaal. 

 It is closely related to B. vejdovskyi Stebbing, and appears to be a 

 generalized Niphargus-Crangonyx type. It is of special interest as the 

 only known fresh- water Amphipod from South Africa. 



Ergasilus sieboldii Nordm.f — T. Freidenfelt has some notes on 

 this Copepod, which he found in great abundance on the gills of pike. 

 He deals especially with the furcal setae, and with the genital apertures. 

 The development is pelagic, and the nauplii do not fix themselves as 

 Hofer supposed. 



Annulata. 



Species of Perionyx from a sub-Antarctic Island. | — L. Cognetti 

 de Martiis describes Perionyx shoeanus sp. n. from Shoe Island, a small 

 island near Auckland Island. It was found there by one of the officers 

 of the 'Discovery' (11)02). It is nearly allied to F. saltans Bourne. 

 The occurrence of a species of Perionyx on a sub- Antarctic island is a 

 surprise, as the genus has hitherto been known only from the Philippine 

 and Sunda Islands, India, Himalaya, Ceylon, and Madagascar. 



Masses of Water-worms. § — George H. Carpenter reports a case of 

 a farm drain, six inches by four inches, completely blocked for a distance 

 of three or four feet by a mass of minute Tubificid worms, identified 

 by R. Southern as Limnodrilus udekemianus Claparede. 



Suckers of Myzostomidae.]] — C. L. Boulenger finds in numerous 

 specimens of Myzostoma from the Red Sea, that there are six pairs of 

 suckers, not four pairs as hitherto observed. There is a pair in front of 

 the first parapodia, and a pair behind the last. This excess of suckers 

 as compared with parapodia is against Wheefer's theory that the Myzo- 

 stomid suckers correspond to the lateral organs of Capitellids. 



Nematohelminthes. 



Swiss Fresh-water Nematodes. If — E. von Daday makes a report on 

 twenty-one species from Swiss lakes. Most of these are species of 

 Limnomermis, Mesomermis, Hydromermis, etc., which Daday has pre- 

 viously described. He adds a new form, Iromis helveticus sp. n. 



Platyhelminthes. 



New Genera of Tape-worms.** — F. E. Beddard defines a new genus 

 Thysanotsenia, moderately large tape-worms, 4-6 in. in length, 3 mm. in 

 breadth ; scolex unarmed, with lateral suckers ; proglottids posteriorly 

 as long as or slightly longer than broad ; genital pores unilateral, borne 



* Proc. Zool. Soc, 1911, pp. 948-57 (3 pis.). 

 t Lunds Univ. Arsskrift, vi. (1910) No. 3, pp. 1-12 (3 figs.). 

 X Ann. Nat. Hist., ix. (1912) pp. 67-9. 

 § Econ. Proc. R. Dublin Soc, ii. (1911) p. 50. 

 II Zool. Anzeig., xxxvii. (1911) pp. 346-51 (2 figs.). 

 t Rev. Suisse Zool., xix. (1911) pp. 501-36 (3 pis.). 

 *• Proc. Zool. Soc, 1911, pp. 994-1018 (11 figs.). 



