520 ARANEIDEA. 
The following genera I am unable at present to place satisfactorily in their natural 
relationship to the other Araneine represented in the collection. 
CAREPALXIS. 
Carepalais, L. Koch, Arachn. Austral. p. 123 (1871) ; O. P.-Cambridge, Biol. Centr.-Amer., Arachn. 
Aran. i, p. 48 (part.) ; E. Simon, Hist. Nat. Araign. édit. 2, i. p. 830. 
Type C. montifera, L. Koch. Port Mackay, Australia. 
Simon distinguishes this genus from Scoloderus by the straightness of the anterior 
row of eyes, but I cannot find any difference in this respect in the species which, if we 
take into consideration the characters furnished by the form of the cephalic hump, 
must be severally referred to these two genera. The plain or bilobate form of the 
cephalic hump will at present serve to separate them. The two examples referred to 
this genus in Vol. I. of this subject are immature females, and they may or may not 
represent different species. Both have the central posterior eyes wider apart and larger 
than the anteriors. 
1. Carepalxis gibbosa. 
Carepalxis gibbosa, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 48, t. 4. figg. 10, 10 a, b 
—(@)?5 Keyserl. Spinn. Amer., Epeiride, p. 54, t. 2. figg. 48, 48 a,b (2)*. 
‘Type, 2 (immature), in coll. Godman & Salvin. Total length 6 millim. 
Hab. GuaTEMALA?; Panama, Bugaba (Champion '). 
2. Carepalxis rotunda. 
Carepalxis rotunda, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 224, t. 27. figg. 7, 
7a-d (¢)’. 
Type, 2 (immature), in coll. Godman & Salvin. Total length 5-25 millim. 
Hab. Mexico, Atoyac in Vera Cruz (7. H. Smith +). 
SCOLODERUS. 
Hypophthalma, Taczanowski, Hore Soc. Ent. Ross. xy. p. 129 (1879) (nomen preoce.). 
Scoloderus, E. Simon, Hist. Nat. Araign. édit. 2, i. p. 829 (1887); O. P.-Cambridge, Biol. Centr,. 
Amer., Arachn, Aran. i. p. 282; McCook, Amer. Spid. iii. p. 207. 
Type S. cordatus (Tacz.). South America. 
Females. 
a. Abdomen longer than broad. . 
a’. Abdomen with single shoulder-tubercles. 
a’, Ventral area of abdomen unicolorous. Scapus of vulva 
more globular at its apex, abruptly constricted basally. 
Cephalic region orange-red-brown ........, americanus, O. P,-Cambr. 
