ARACHNIDA. 
S21 
h. Lnloral oyos always approximated, usually situated on a common 
tubercle. 
a. Ceplialothorax elongated and arched, cephalic portion as long 
as tlie posterior JEpeira, Walck. 
(3. Ceplialothorax nearly round, flat, and densely clothed with white 
hairs ; cephalic portion much smaller than the posterior 
Argyopes^ Lav. 
II. Maxillje longer than broad. 
a. Metatarsi of the first pair of feet much longer than the tibia and 
patella together ; ceplialothorax much more elevated in front than 
behind ,• labium longer than broad .... Nephila.y Leach. 
h. Metatarsi of the first pair of feet at the utmost equal in length to the 
tibia and patella together 5 ceplialothorax not higher in front 
than behind j labium not longer than broad . Tetragnatha, Walck. 
In his remarks upon the genera,* Keyserling states that he has 
cancelled several of Koch^s genera, such as Miranda^ Attea, 
Zilla, and Lingay because, as far as can be made out from the 
species referred to them, they are founded upon insufficient 
characters. Tetragnathay Walck., is enlarged by the addition of 
Meta, Koch, except M. cellulana and tigrina, which are regarded 
as belonging to the Theridiidce. Of Gea and Galenaj Koch, the 
author knows nothing. Ulohorus, Latr., is referred to Black- 
walks Ciniflonida , and Ulohorus walchenaerius y Latr., is con- 
sidered by Keyserling to he identical with Veleda lineata, Blackw. 
MithraSy Koch, docs not belong to the Epeiridcs. 
Remarks on species previously described : — 
Blackwall describes and figures the following known species 
of this family (History of British Spiders, part ii.) : — 
Epeira qiiaclrata (Fab.), /. c. p. 324, pi. 23. fig. 236 ; E. apoclisa (Walck.), 
1. c. p. 326, fig. 237 ; E. sericata (Koch), 1. c. p. 328, fig. 238 5 E. patagiata 
(Koch), 1. c. p. 329, pi. 24. fig. 239 ; E. scalaris (Walck.), 1. c. p. 331, fig. 
240 ; E. signnfa (Blackw.), 1. c. p. 332 ; E. umhratica (Clerck), 1. c. p. 333, 
fig. 241 5 E. agalena (W^alck.), 1. c. p. 334, fig. 242 ; E. solers (Walck.), I c. 
p. 336, fig. 243 ; E. similis (Blackw.), 1. c. p. 337, pi. 26. fig. 244 ; E. calo- 
phglla (Walck.), 1. c. p. 338, fig. 245 ; E. acalypha (Walck.), 1. c. p. 341, fig. 
246 ; E. curcuhitina (Lin.), /. c. p. 342, fig. 247 ; E. hella (Meade), 1. 0 . p. 343, 
fig. 248 ; E. lutea (Koch), 1. c. p. 345, fig, 249 ; E. ornata (Blackw.), 1. c. 
p. 346 ; E. ceropegta (Walck,), I c. p. 347, fig. 250 ; E. adianta (Walck.),/. c. 
p. 318, fig. 251 ; E. fusea (Walck.), /. c. p. 349, pi. 20. fig. 252 ; E. antriada 
(Walck.), /. c. p. 367, fig. 263 ; E. celata (Blackw.), /. c. p. 353, fig. 254 ; E. 
inclinata (Sund.), /. c. p, 354, fig. 255 ; E. alhimacula (Koch), /. c. p. 365, fig. 
266 ; E. anthracina (Koch), /. c. p. 367, fig. 257 ; E. diadema (Lin.), /. c. 
p. 358, fig. 258 ; E. angidata (Lin.), /. c. p. 360, pi. 27. fig. 259 ; E. hicornis 
(Walck.), /. c. p. 301, fig. 260 ; E. conica (Pall.), /. c. p. 362, fig. 261 ; E. tu- 
itdosa (Walck.), /. c. p. 364, fig. 202 ; E. calva (Blackw.), /. c. p, 365, fig. 263 ; 
E. herii (Ilahn), /. c. p. 366, fig. 264 ; Tetragnatha externa (Lin.), /. c. p. 367, 
pi. 28. fig. 205. 
1864. [voL. I.] 
Y 
