746 REV. 0. P. CAMBRIDGE ON NEW ARANEIDEA. [Nov. 1, 
which is of a semicircular or crescent shape. The spinners are short, 
strong, and compactly grouped, the four forming the superior and 
inferior pairs completely concealing (if they existed) the normal 
third pair. 
An adult female of this most remarkable Spider was received lately 
from Santa Fé, Minas Geraes, Brazil, where it was captured by Mr. 
Henry Rogers, after whom I have great pleasure in naming it. The 
absence of a /abium stamps it at once as unique among our yet re- 
corded Araneidea. 
Some systematists might consider this character of sufficient im- 
portance to warrant the foundation of a separate family ; but, consi- 
dering it only of generic value, I have based upon that and other 
strong positive characters the present new genus. The Ant-like 
appearance of this species has already been remarked upon (introd. 
supra). The great development of the clypeus, with the two horns 
on the caput, give it a very striking appearance, much resembling 
the broad muzzle and head of a Bull. 
An adult female of a very closely allied (if not identical) species is 
in the British Museum, captured at Ega, Brazil, by Mr. Bates; it 
is, however, smaller, and may possibly prove to be distinct. 
EXPLANATION OF PLATE XLIV. 
Fig. 1. Stenochilus hobsonii, 8, p. 729. 
a. Profile of cephalothorax. 
6. Underside of cephalothorax. 
c. Fore right view of eyes and falces. 
d,. Extremity of tarsus. 
e, f. Palpus in two positions. 
g. Natural length of Spider. 
2. Cydippe unguiculata, $, p. 731. 
a. Profile of cephalothorax. 
4. Underside of cephalothorax. 
c. Fore right view of eyes and falces. 
d,. Extremity of tarsus. 
e. Natural length of Spider. 
Ff, g. Palpus in two positions. 
. Sphecozone rubescens, g, p. 733. 
a. Profile of cephalothorax. 
4, Fore right view of eyes and falces. 
c. Underside of cephalothorax. 
d. Extremity of tarsus. 
e. Natural length of Spider. 
Ff, g. Palpus in two positions. 
4. Cephalobares globiceps, 3, p. 735. 
a. Profile of cephalothorax. 
6, Underside of cephalothorax. 
e. Fore right view of eyes and falces. 
d. Extremity of tarsus. 
e. Natural length of Spider. 
Ff, g. Palpus in two positions, 
5. Moneta spinigera, 2, p. 736. 
a. Profile of cephalothorax. 
6. Underside of cephalothorax. 
ce. Fore right view of eyes and falces. 
d, Natural length of Spider. 
(a) 
