ARACHNIDA. 
173 
ARACHNIDA 
BY 
W. S. Dallas, F.L.S., &c. 
I. Work in progress, 
Thorell, T. Kongliga Svenska Fregatteu Eiigenies Resa ora- 
kring Jordon. Zoologi : Araclinider, i. pp. 1-34: 1868. 
Contains descriptions of new or little-known species of Epei- 
ridse. Three new genera are characterized. 
II. Papers published in Journals, S^c. 
Blackwall, John. Notice of several Species of Spiders sup- 
posed to be new or little known to Arachnologists. Ann. 
& Mag. Nat. Hist. 4th series, vol. ii. pp. 403-410. 
Canestrini, Giovanni. Nuovi Aracnidi Italian!. Annuario 
della Soc. dei Naturalist! in Modena, Anno iii. pp. 190-206 : 
1868. 
Claparede, E. Studien an Acariden. Zeitschr. fur wiss. 
Zoologie, Band xviii. pp. 445-546, plates 30-40. 
An elaborate memoir on the structure, physiology, and deve- 
lopment of the Acarina, illustrated by particular reference to 
the following forms : — Ataoo, Haplophora, Hypopus, Myobia, 
Tiroghjphus, llhizoglyphus, Myocoptes, Listrophorm, and Tetra^ 
nychus. 
Emerton, J. H. The habits of Spiders. American Naturalist, 
vol. ii. pp. 476-481, plate 11. 
Erber, J osee. Bericht iiber eine Reise nach Rhodus. Verhandl. 
zool.-bot. Gesellsch. in Wien, Band xviii. pp. 903-908. 
Herman, C. Otto. Ucber das Sexualorgan der Epe'ira quadrata, 
Walck. Yerhandl. zool.-bot. Gesellsch. in Wien, Band 
xviii. p. 923-930. 
A detailed description of the external sexual organs in both 
sexes of Epe'ira quadrata. 
J osEPH, Gustav. Cyphophthalmus duricorius, eine neue Arach- 
1868. [vol. V.] o 
