314 
ZOOLOGICAL LITERATURE. 
Keyserling, Eugen. Besclireibuiigen neuer und wenig be- 
kannteii Arteii aus derFamilie Orbitelce^l^ixiv., odi&vEpeiridcB, 
Simd. Sitzungsber. der naturw. Gesellscbaft Isis^ zu Dres- 
den, Jabrgang 1863, pp. 63-98 and 119-154, plates 1-7, 
Dresden, 1864. 
Lucas, H. Remarqnes sur nne Aracbnide trouvee aux environs 
(Je Bogbar (Algerie). Ann. Soc. Ent. Fr. 4® serie, tom. iv. 
p. 206. October 12, 1864. 
Lucas, H. Queb|ues remarqnes snr les Araneides Orbiteles de 
la Nonvelle-Grenade, de Nossi-B^ de Malacca, &c. de 
M. Keyserling. Ibid. pp. 217, 218. October 12, 1864. 
** Anatomical and Physiological. 
Claparede, E. Etudes sur la circulation du sang cbez les 
Araignees du genre Lycose. (Investigations on tbe circula- 
tion of tbe blood in tbe spiders of tbe genus Lycosa.) 
Reprinted from Mem. Soc. de Pbys. et dGlist. Nat. de 
Geneve, tome xvii. 1863, in Ann. Sei. Nat. serie 5. tome i. 
pp. 259-274 (Novembre 1864). Translated in Ann. & Mag. 
Nat. Hist. 3rd ser. vol. xv. pp. 16-28. 
Kroiin, a. Ueber die mannlieben Zeugungsorgane der After- 
spinnen. Verb, naturb. Ver. preuss. Rbeinl. und Westpb. 
1864, (Sitzgsber.) pp. 109, 110. 
[On tbe male generative organs of Phalangium.^ 
Vogt (Vorlesungen iiber niitzlicbe und scbadlicbe, &c., 
Tbiere, pp. 95-106) refers to some injurious and otherwise 
notorious species of Aracbnida, sucb as tbe Ticks and Mites, 
the Tarantula, and tbe Scorpions, and to tbe benefits conferred 
upon man by other forms of this class, sucb as tbe ordinary 
Spiders and Harvest-men. 
ARANEIDA. 
Tbe primary division of tbe Araneida into tribes, adopted by 
Blackwall (History of Spiders of Great Britain and Ireland), is 
founded upon tbe number of eyes. The species with eight eyes 
constitute tbe tribe Octonoculina, wbicb includes by far the 
greater part of tbe order; tbe Senoculina include the species 
with six eyes ; and tbe Binoculina those with only two. Tbe 
last-mentioned tribe is formed solely b)' tbe genus Nops 
(M‘Leay), of wbicb only a single species is descril)ed; tbe Se- 
noculina include tbe two families T>ysderid(e and Scytodidca of 
Blackwall. This character is evidently most artificial, and tbe 
mere sup])ression of a single pair of ocelli out of eight cannot 
