ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 55 



Lithobiomorpha of New Zealand. — Gilbert Archey [Trans. New 

 Zealand Inst, 1916, 49, 303-18, 46 figs.). Hitherto only six species 

 of this sub-order of centipedes have been known from New Zealand. 

 The author adds three new species of Lamyctes, two new species of the 

 genus Paralamyctes (hitherto not known to be represented in New 

 Zealand), and two new species of a new genus, Wailamyctes. A key to 

 the families is given. J. A. T. 



Revision of SpirobolidsB. — J. Carl {Revue Suisse Zool., 1919, 27, 

 377-404, 42 figs.). An account of Rhinocricus, Messicobolus, Saussuro- 

 lolus g. n., Xenoholus g. n., CheloyonoMus g. n., and Spiroiolus, with 

 especial reference to the minute structure of the gonopods, which appear 

 to have much systematic value. J. A. T. 



Alpine Leptoiulidae. — Walter Bigler (Revue Suisse Zool., 1919, 

 27, 283-333, 2 pis., 7 figs.). An account of seven Alpine species, four 

 of which are new. The specific characters are crisply defined, but the 

 group shows a very distinct unity in certain structural features, notably 

 as regards the copulatory apparatus. The evolutionary interest of the 

 unity amid diversity is discussed in detail. J. A. T. 



Revision of Glomeridae.— F. Silvestri (Records Indian Museum, 

 1917, 13, 103-51, 35 figs.). A systematic report on Indian Glomeridae, 

 a family of Oniscomorph Diplopoda. The author deals with four 

 genera — Apiomeris, Rhopalomeris, Hyperglomeris g. n., and Dinoglomeris 

 g. n. — and 26 species. J. A. T. 



5. Arachnida. 



The Genus Oxus— Charles D. Soar {Journ. QueTcett Micr. Clul), 

 1919, 14, 1-6, 1 pL). A revision of this genus of water-mites, of which 

 there are three British representatives, 0. plantar is Sig. Thor., 0. ovalis 

 (Miill.) Koenike, and 0. strigatus (Miill.) Piersig. J. A. T. 



New Species of Arrhenurus. — Ruth Marshall (Trans. Atner. 

 Micr. Soc, 1919, 38, 275-81, 3 pis.). About 90 genera of Hydrachnidse 

 are now recognized, with some 800 species. About one-fourth of these 

 species belong to the genus Arrhenurus. Fifty-five have been described 

 for North America, chiefly from the Upper Mississippi Valley. This 

 paper adds one new species from Wisconsin, six from South America, 

 and two from China. J. A. T. 



<• Crustacea- 



Commensalism in Hermit-crabs.— R. P. Cowles (Philippine Journ. 

 Sci., 1919, 15, 81-9, 1 pL). Observations on the partnership between 

 hermit-crabs and sea-anemones. The careful transfer of the sea- 

 anemones from the old shell to the new one was observed in two species. 

 Considerable inaccuracy in the attachment was sometimes seen. In 

 some cases the anemones attach themselves as larvae to the mollusc shell. 

 The behaviour of the hermit-crabs gives evidence of some inherited 

 nervous condition which directs the actions. We must not credit the 



