224 
ARACHNIDA. 
iO, Theridiidai\ 11, Fholcidce; 12, Hersiliidoi; 13, Urocteoidie; 14, 
Enyoidce ; 15, Agelenidce ; 16, Dictynidce ; 17, Drassidce. Sub-order III. : 
Araneas Gnapitosas. Fam. 18, Scytodidcc ; 19, Dysderidce. Sub-order 
IV. : Arane^ Theraphosa:. Fam. 20, Filistatidce ; 21, Avicularidcu. 
Separate analytical tables of families, genera, and species are given, in 
some cases of males as well as females. The descriptions of species and 
characters of genera and families are mostly clear and terse. Of 
the Ejyeiridoe^ 11 genera are characterized: — Peltosoma (2 species); 
Argiope, 2 ; Cyrtojphora, 1 ; Cyclosa, 5 ; Epeira, 39 ; Larinia, g. n., 2 ; 
iSinga, 8 ; Cereidia, 1 ; Zilla, 6 ; Meta, 3 ; Tetragnatha, 5. Of the 
Ulohoridce, 2 genera: — Ulohorus, 3 species, and Hyptiotes, 1. Of the 
Dictynidce, 4 genera : — Dictyna, 14 species ; Lethia, 5 ; Titanceca, 7 ; and 
Amaurohius, 10. Of the Enyoidce, 3 genera ; Ceto, g. n., 1 species ; 
Selamia, 1; and Enyo, 9. Of the P/to/aWo?, 3 genera : — Holocnemus, 
1 species ; Pholcus, 2 ; and Spermophora, 2. The order followed is deter- 
mined by the convenience of the author’s materials. Representatives of 
the Epeiridce, Ulohoridce, and Dictynidce are figured. 
The Recorder, Nature, xi. [1876] pp. 224-226, in a review of this 
Volume, has questioned the author’s classification on the ground that the 
above mentioned difference in the eyes is, if true, not an essential one, 
nor of sufficient value to form the basis of a division of the order 
Araneidea into sub-orders ; those sub-orders proposed being also shown 
to be heterogeneous groups. 
Taczanowski, Ladislas. Les Aran^ides de la Guyane frau 9 aise. Der- 
niere partie. Hor. Ent. Ross. x. pp. 56-115, pi. ii. 
The conclusion of former papers [see Zool. Rec. ix. p. 207, x. p. 199]. 
Records 49 species, of which 38 are described as new, with characters of 
two new genera. 
Westring, N. Bemerkungen fiber die Arachnologischen Abhandlungcn 
von Dr. T. Thorell under dem Titel, 1<> On European Spiders, &c., 
pts. 1 & 2, Upsala, 1869-70 : 2« Remarks on Synonyms of Eu- 
ropean Spiders, Upsala, 1872-73. Goteb. Handl. (n. s.) xiv. (sep. 
copy) pp. 1-68. 
Much of the author’s very minute criticism (in fact, almost censure) 
of Thorell’s works probably arises from his want of familiarity with the 
English language. 
Underiiiij-, H. M. J. Spiders’ Webs and Spinnerets. Sci.Goss. 1874, 
pp. 200 &. 201, 4 woodcuts. 
The author describes the separate functions of the different spinners, 
including those of the 4th pair ; figuring the latter, with the orifices (not 
tubes), 1250 in number, for the emission of silk, and the silk glands 
connected with them. These have never (it is believed) been before 
dissected and figured. [Thorell’s doubt (Syn. Eur. Spid, p. 595) as to 
the spinning functions of the supernumerary mammillae, or 4th pair of 
spinners, appears therefore to be thus completely dispelled.] 
Supposed antipathy of Spiders to chestnut-wood ; Nature, x. pp. 6 & 26. 
