ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 359 



mannitol (mannite), C 6 H u O ti . This also occurs in the sap of the plants 

 on which the insects feed. It is taken up by the insects and re-deposited 

 on the leaves and the bark in an almost pure condition. 



°- Arachnida. 



Ear Mite of Cattle.* — Lndwig Freund gives some account of 

 Raillietia auris Trouessart (= Gamasus sp. Leidy = G. auris of others) 

 which occurs as a parasite in the external auditory meatus of cattle and 

 sometimes causes disease. 



False Scorpions of British Isles.f — H. Wallis Kew has made a 

 useful synopsis of Pseudoscorpiones. The following genera are repre- 

 sented : Ghernes (!) species, one new), Chelifer (2 Bp.), Withius sub-g. n. 

 (1 sp.), Cheiridium (1 sp.), Ideoroncus (Obisium) (1 sp.), Roncus (Obisium) 

 (1 sp.), Obisium s. str. (3 sp.), Chthonius (4 sp.). 



New Species of Linguatula.J— E. A. Johnston describes L. dingo- 

 phihi sp. n. from a dingo, which differs in many respects from L. rhinaria 

 of the dosr. 



J b' 



Antarctic and other Tardigrada.S — James Murray gives an account 

 of Tardigrada from the Antarctic (Sir E. H. Shackleion's Expedition), 

 from New Zealand, Australia, some Pacific Islands, and Canada. The 

 memoir also includes a useful discussion of the structure of Tardigrada, 

 of the nomenclature, and of the value of species of Tardigrada. Many 

 of the specific characters are not of any obvious value to their possessors. 



The author deals with fifty species, distributed in five genera — 

 Macrobiotics, Ec/tiniscas, Diphascon, Milnesium, and Orcella g. n. These 

 fifty species are about half of the known Tardigrada. About twenty- 

 three other forms were obtained, which are not sufficiently known to be 

 identified or named as new. Seventeen species are new T , and one new 

 generic type {Orcella) is included in the Australian list. 



It is noted that the continental areas are much richer than the 

 islands, both in the number of species and in the proportion of peculiar 

 species. The Australian Tardigrade fauna has most peculiarity about 

 it. Specimens of Macrobiotus arcticus endured repeated freezing and 

 thawing at weekly intervals, for months, and the eggs retained their 

 vitality after the adults had been kept dry for a year, and conveyed on 

 a voyage through the tropics to England. 



e. Crustacea. 



Schizopods from North-east Atlantic Slope. || — W. M. Tattersall 

 describes eight new species, two of which required new genera — Metam- 

 blyops and Bathymysis. Four bottom-living species are added to the 

 British and Irish list, two of them previously known only from the West 

 Coast of Greenland. Attention is directed to the striking form and 



* Zool. Jahrb., xxix. (1910) pp. 313-32 (11 figs.), 

 t Proc. R. Irish Acad., xxiv. (1911) pp. 38-64 (3 pis.). 

 J Trans. Proc. R. Soc. S. Australia, xxxiv. (1910) pp. 248-50 (1 pi.). 

 § Rep. Sci. Invest. British Antarc Kxped., 1907-9 (Biology) i. pt. 5 (1910) pp. 

 83-185 (8 pis.). 



i Sci. Invest. Fisheries Ireland, ii. (1910, published 1911) pp. 1-77 (8 pis.). 



