Ixiii 



Arachnida. 



The Swedish naturalist, Thorell, has continued his excellent 

 lahours on the European spiders, and has, moreover, given us a 

 new classification of the scorpions (see Ann. Nat. Hist., Jan. 

 1876). He has also published an article on some spiders of 

 Labrador (Proceedings Boston Soc. N. H. xvii. p. 490). 



The various articles published on the spiders of North 

 America in the Natural History periodicals of that country by 

 the late N. M. Hentz have been collected into a volume by the 

 Boston Society of Natural History, edited by E. Burgess, with 

 notes by J. H. Emerton (Occas. Papers, ii.). 



A second memoir on the Arachnida Territelarise (Mygalidse), 

 with three plates, by Dr. Ausserer, has appeared in the twenty- 

 fifth volume of the Vienna ' Verliandlungen.' 



The memoir of Mr. E. Gillies on the trap-door spider of New 

 Zealand is referred to above (p. 22). 



The Eev. 0. P. Cambridge has communicated a memoir on a 

 new order and some new genera of Arachnida from Kerguelen's 

 Land, with a plate, to the ' Proceedings of the Zoological Society,' 

 1876, p. 258. Also a catalogue of a collection of spiders made 

 in Egypt, wdtli descriptions of a new species of a new genus 

 {Ibid, IX 541). 



An elaborate memoir by Dr. Anton Specker, of Prague, upon 

 the anatomical and histiological characters of Gibocellium, a new 

 genus of Opilionideous Arthrogastra allied to the interesting 

 genera Cj^phophthalmus and Stylocellus, Westw., illustrated by 

 four plates, has appeared in Troschel's ' Archives ' (forty-second 

 year, 3rd Heft, p. 293, 1876, 4to). The type of the new genus is 

 named G. sudeticum, from the Bohemian Mountains. 



In Troschel's ' Archives ' (forty-first year, Heft 1) Herr Kramer 

 has published two memoirs on the mites of the family Gamasidse. 

 A memoir on the same family, by M. Megnin, appears in the 

 ' Comptes Eendus ' of 20th November last. A curious new genus 

 of Acaridse, named Dendroptus, with two species, is described 

 by Dr. Kramer in Troschel's Archiv. f. Naturg. (forty- second 

 year, 2nd Heft). An anatomical memoir on the Acaridte, together 

 with descriptions of some new genera of the family Gamasidse, is 

 given by Dr. P. Kramer in Troschel's Archiv. f. Naturg. (forty- 

 second year, 1st Heft). 



