168 .SUMMARV OF GUKKENT RESEARCHES RELATING TO 



axis (e.g. a bifurcating leg), or reduplications in the longitudinal axis. 

 The former is the more frequent. The abnormal appendage described 

 by Doncaster is probably a reduplication, not of the poison-claw, but of 

 the second maxilla. 



Classification of Geophilomorpha.* — H. W. Brolemann discusses 

 the classification proposed by Verhoeff, and compares it with that sug- 

 gested by Attems and by himself. He also gives diagnoses of some 

 new genera — Trematorya, Ribautia, Gnathoribautia, AUoschizotcenia, 

 Brachygeophilus, and Chalandea. 



Studies on Diplopoda.| — F. Silvestri describes Perkambala orientalis 

 g. et sp. n. from Tonkin, and erects for it a new family Pericambalida? 

 in Cambaloid section of Diplopoda. 



8. Arachnida. 



Development of Agelena labyrinthica.^ — Gr. Kautzsch begins with 

 the formation of the polar bodies and the segmentation of the eggs ; 

 he follows the stages in the differentiation of the blastoderm— the 

 appearance of cumuli and of metameres ; he discusses the remarkable 

 process of " Umrollung " exhibited by the germinal streak, the origin of 

 the heart and the blood-cells, and the difficult question of the " endo- 

 derm " — a term which does not seem to have much meaning (in a 

 comparative embryology sense) in the development of Arachnoids. 



Structure and Habits of Ixodes ricinus.S — Katharina Samson 

 gives a valuable account of this tick, describing the various systems of 

 the body and the reproduction. Many new points of interest are dis- 

 cussed. 



e. Crustacea. 



Hippolyte gracilis in the British Area.[| — A. 0. Walker records 

 this Mediterranean species from Worthing, where he found it associated 

 with H. varians. This is the first record for the British area proper. 

 In 1899 Walker reported a specimen taken by Hornell in the Channel 

 Islands. 



Anomura of Kattiawar.1T — T. Southwell reports on a small collec- 

 tion of Anomura from Okhamandal in Kattiawar, including Porcelana 

 yaekwari sp. n. and Polyonyx hendersoni sp. n. The collection is 

 interesting in showing the considerable degree of variation present in 

 certain species of the family Galatheidas, and secondly, the large size of 

 many individuals, which shows the luxuriant conditions under which 

 they must have lived. 



New Species of Pinnoteres.** — J. Hornell and T. Southwell 

 describe P. placunse sp. n. abundant in the window-pane oyster (Placuna 

 placenta). It is characterised by being extremely flattened dorso- 



* Arch. Zool. Exper., iii. (1903) pp. 303-40 (1 table), 

 t Boll. Lab. Zool. Scuola Agric. Portici, iv. (1909) pp. 66-70 (5 figs.). 

 X Zool. Jahrb., xxviii. (1909) pp. 477-538 (3 pi. and 25 figs.). 

 § Zeitscbr. wiss. Zool.,xciii. (1909) pp. 185-236 (4 pis. and 18 figs.). 

 i| Ann. Nat. Hist., v. (1910) p. 216. 



•f Report to Govt. Baroda Marine Zool. Okbamandal in Kattiawar, 1903, pp. 

 105-23 (1 pi.). •* Tom. cit., pp. 99-103 (lpl.). 



