ARACHNIDA. 
183 
scarcely separated towards the apex ; abdomen globose, united to the cephalo- 
thorax by a long, nodose peduncle resembling that of the Ants ; median eyes 
placed upon a common elevation, the posterior more distant from the pos- 
terior lateral e}'es than from each other, the anterior nearly contiguous ; the 
lateral eyes also contiguous ; length of legs decreasing as follows : — 1, 2, 4, 3. 
Sp. F. midmensis, Oanestrini, 1. c, p. 197, and F. pallida, Canestriui, 1. c. 
p. 199, near Modena. 
Linyphia rubccula, sp. n., Oanestrini, 1. c. p. 200, North Italy. 
EPElRIDiE. 
Herman describes the external sexual organs of Fpdra quadrata (Verb, 
zool.-bot. Ges. in Wien, xviii. pp. 923-930). 
Wyman has observed the destruction of the males of a species of Fpeira 
by the female, he says, after the union of the sexes.” One female was 
observed to have killed five males (Proc. Host. Soc. Nat. Hist. xi. p. 287). 
WiLDEJi publishes some notes on the emission of floating threads by 
Ncphila plmnipes. Amer. Natural, ii. p. 214. 
Simon (Rev. et Mag. Zool. 18G8, p. 449) describes Fpeira pallida (Oliv.) 
and its varieties. 
TiiORELii (Eugenies Resa, Zool., Arachn. i.) describes fully the following 
species, of which he published diagnoses in the G5fvers. Kongl. Vet.-Akad. 
Fdrh. for 1869: — Gasteracantha vaccula, p. 12; G. vittata, p. 13; G. varia, 
p. 14 ; G. viossta, ibid. ; G. hilaris, p. 15 ; G. ensifera, p. 10 ; G. ornata, ibid. ; 
G. instda7ia, p. 17 ; G. mammeata, p. 18; G. guttata, p. 19; G. horrens, p. 20; 
G. mxnax—Jiam-maculaia (Keys.), p. 21 ; G, parmla, ibid. ; G. tuherosa, 
p. 22 ; G. talndata, p. 23 ; G. modcuia, p. 24 ; Acroaoma forcipntum, p. 25 ; 
A. hovinum, p. 20 ; A.(?) stdligcrnm, ibid. ; Argiopc avara, p. 27 ; A. opulenta, 
p. 28; A, elegans, p. 29; A. manicata, p. 30; A. nigro-vittata, p. 31; A. cus- 
pidata, p. 32; also A. clathrata australis ( Walck.) = (Thor.), 
p. 30; Nephila fenestrata, p. 33; and N. annulata, p. 34. 
New genera and species : — 
Cclcmia, g, n., Thorell, Eugenies ^Resa, Zool., Arachn. i. p. 1. Cephalo- 
thorax obcordato-orbiculate, head minute, clypeus elevated, thorax convex ; 
eyes eight, small, subecjual, in two subparallel series, median almost in a 
square, lateral contiguous ; falces perpendicular ; labium transverse, rounded 
at apex; legs 1, 2, 4, 3, wdth three claws, the upper ones unequal on the four 
anterior, the exterior much the longer, equal on the four posterior ; abdomen 
large; mamillae 0, two anterior conical, the rest subcylindrical. Sp. C. 
kinhergii, sp. n., Thor. 1. c. p. 1, Sydney. 
Cairostris, g. n., Thorell, 1. c. p. 3. Gasteracantha (Koch) ex parte ; Fury- 
soma (Blackw.) ex parte. Cephalothorax subquadrate, elevated in front, and 
witli two transverse rows of tubercles, posterior row of four, anterior of three 
tubercles, the latter bearing the eyes ; median eyes forming a trapezium, 
which is imich wider behind ; falces very stout, perpendicular ; maxillro sub- 
orbiculate; legs 1, 2, 4 (4, 2), 3, with three claws, the superior pectinate; 
abdomen large, subtransverse, concealing the posterior part of the cephalo- 
thorax, soft, pilose, tuberculate, marginal ocelli wanting; mamillfe 0, conical, 
Sp. Fpeira mitralis (Vins.), p. 4 ; G. kcyscrlingii, sp. n., Thorell, /. c. p. 7, Caf- 
