222 ARANEIDEA. 
gratiosus, and it may be referable to Koch’s species, judging from the two published 
figures. 
CYRENE. 
Cyrene, Peckham, P. Z.S. 1893, p. 698. 
Heraclea, Peckham, Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 76 (April 1896). 
Type of Cyrene, C. decorata, Peckham (in Mus. Brit.), St. Vincent, W.I. (2); of Heraclea, H. regia, Peckham, 
Guatemala. 
I am unable at present to recognize any generic distinction based on the structure 
which would incline one to uphold the use of these two distinctive names. I am 
also unable to understand on what system Peckham’s classification is based, or whether 
there is any system intended. He, however, remarks that Heraclea is near Epinga, 
but does not mention that Cyrene even enters the same group. pinga,in my opinion, 
is not very nearly allied to either of them. It is of course possible that C. niveoguttata, 
C. delecta, C. aprica, and C. interrupta may, with the type-species, whose abdominal 
pattern is characteristic, form a convenient generic group, if some really definite 
character be found on which to base such a distinction. 
The following are the characters common to all the members included here under 
Cyrene :— 
9. Anterior row of eyes slightly recurved; ocular quadrangle broader than long, wider in front. Carapace 
elongate-oval, slightly dilate at the sides beyond the middle, about once and a quarter longer than 
the ocular quadrangle, but very variable. Tibie i. and ii. with 2—2—2 spines beneath and one apical 
spine, or 1—1 lateral spines on the inner side; protarsi i. and ii. with 2—2 spines beneath. Patelle 
i. and ii. with or without a small spine on the inner side. Tibie iii. and iv. with or without a single 
small dorsal basal spine * ; with 1—1—1 spines on each side. Protarsi iil. and iv. with a basal, median, 
and apical transverse group of spines. Sternum very variable in shape, but, as a rule, rather dilate 
posteriorly, where it narrows suddenly and concavely, forming a very broad blunt cone. Mandibles 
simple, not developed, nor with enlarged teeth or apophyses ; with a short stout fang, two small teeth on 
the upper margin, and a single slightly larger one on the lower. 
The characters drawn from minute differences in the position of the eyes and in the 
height and curvature of the carapace are so subtle, and so difficult of observation, as 
to be almost useless, to my mind. 
Males. 
A. Abdomen bright orange-rust-red above, with central pale band. 
i. Tibi ii. and iv. without a small dorsal basal spine. 
1. Tibia of palpus incrassate, bilobate, prominent on the outer side, 
viewed from above. Bulb not bilobate at the base; apical spine 
short, slightly curved, with a small inner marginal prominence . regia, Peckh. 
* This character separates the females into two groups—(1) including C. delecta, C. aprica, C. interrupta, 
C. fusca, and C. bisignata, which possess the spine; and (2) the remaining species, in which it is absent. 
Amongst several males of the latter, however, which are obviously congeneric with the females of that group, 
the spine is present. 
