582 SUMMARY OF CURRENT RESEARCHES RELATING TO 



the first place in biological groups according to the habitat, as Alpine 



forms, plain forms, &c, and also groups them in sub-regions according 



to the distribution, with notes as to locality, &c. The district proves to 



be very rich in Diplopoda. 



5. Araclmida. 



Mange in Animals.* — Dr. B. Galli-Valerio and P. Narbel discuss 

 Sarcoptes mutants from the feet of fowls, S. Isevis var. gallinse which 

 causes the feathers to fall off, S. minor var. cuniculi from the rabbit, 

 Psoroptes communis var. cuniculi from the rabbit's ear, S. scabiei var. 

 furonis from the ferret, 8. minor from the cat, Psorergatus simplex from 

 the field-mouse, and Myocoptes musculinus (?) from the mouse. 



New Linguatulid.t — Prof. H. B. Ward has some notes on Beigltardia 

 g. n., found in 1894 in the air-sacs of Bonaparte's Gull, and in 1898 in 

 the common tern. One of the three vermiform parasites contained well- 

 developed embryos with the characteristic hooks. The body was elon- 

 gated, cylindrical, transparent, devoid of annulations, with thin cuticle, 

 and round the mouth-opening was a chitinous framework recalling that 



of the Sarcoptidfe. 



e. Crustacea. 



Schizopods from Irish Waters.! — Messrs. E. W. L. Holt and W. J. 

 Beaumont report on the Irish members of this group, especially on the 

 collection made in the 1890-1 survey of fishing-grounds on the west 

 coast of Ireland. They compare their results with what is known of 

 British Schizopods generally, but the points of difference are not striking. 

 They are able to add two species to the British list, viz. Parerythrops 

 obesa G. 0. Sars, and Mysidella typica G. 0. Sars. 



African Ostracods.§ — Herr G. W. Miiller describes from Massai 

 Nycke Eurycypris neumanni sp. n., Cypris bicornis sp. n„ and Stenocypris 

 cultrata sp. n. 



Distribution of Atlantic Copepoda.jj — P. T. Cleve gives tables of the 

 distribution of tlie Copepoda as shown by observations conducted in 

 the years 1898—99, noting the mean temperature and salinity, and the 

 northern and southern limits. The wide distribution of Acartia bifilosa 

 is interesting, no distinction being observed in specimens from the mouth 

 of the Congo and from the Baltic. 



Notes on Copepoda.lf — Dr. W. Giesbrecht gives a list of the littoral 

 species of Copepoda found in the Gulf of Naples, with descriptions of the 

 species of Pterinopsyllus, Cyclopina, and Euryte, and an account of the 

 synonymy. He also notes the occurrence of a single male specimen of 

 Cervinia bradyi Norman in the Gulf of Naples ; hitherto the species has 

 been described from British coasts only. The paper further contains an 

 account of Enterognatltus comatulse, a new intestinal parasite found in 

 the alimentary canal of Antedon rosaceus. The new form certainly 

 belongs to the Ascidicolida3, in sjnte of the novel host. It differs from 



* Bull. Soc. Yaudoise, xxxvi. (1900) pp. 198-202. 



t Proc. Amer. Ass. Adv. Sci., 48th Meeting, 1899, p. 254. 



% Sci. Trans. R. Dublin Soc, vii.'(1900) pp. 221-51 (1 pi. and 9 figs.). 



§ Zool. Jalirb. (Abt. Syst), xiii. (1900) pp. 259-68 (3 pis.). 



II Ofvers. k. Vetensk. Ak. Forbaudl., Ivii. (1900) pp. 139-44. 



-If MT. Zool. Stat. Neapel, xiv. (1900) pp. 39-82 (4 pis.). 



