32 ARANEIDEA. 
3. Tibia i. bears two slender spurs, the outer being very long, directed inwards, and strongly uncate, without 
a spine; the inner short and straight, bearing a spine on the inner side. Protarsus i. very strongly 
curved about the middle; the scopula of tarsus iv. divided by a narrow band of sets beneath. 
Palpal bulb somewhat resembling that of Pseudopelma bicarinatum in form, bifid at the base behind, strongly 
geniculate and bifid at the apex. 
Hab. Guavemata, San Cristobal (Sarg), Vera Paz12, Guatemala city (Stoll) ; Costa 
Rica 34, 
H. pentaloris may readily be distinguished from the other Central-American species 
of the genus by the orange-red stripes on the abdomen, the form of the bulb, and that 
of the spurs beneath tibia i. 
An adult male and three immature females of a spider were found in a collection 
made in the vicinity of Guatemala city by Herr Otto Stoll which are evidently 
specifically identical with the adult female sent by M. E. Simon as the type of his 
Crypsidromus pentaloris. The immature examples also prove to my complete satis- 
faction that the small immature spider sent me by M. E. Simon under the name 
Cyclosternum ruficeps, but described in the works quoted above ** as Hapalopus 
ruficeps, is an immature specimen of this same H. pentaloris. 
The examination, too, of the male, enables me to place this species in that genus 
which Ausserer assigned to those EKurypelmiform spiders of which the males have two 
spurs beneath tibia i. and the scopula of tarsus iv. divided. 
I have now before me five examples of the species all in different stages of 
development, ranging from about three weeks old up to full maturity. 
It is noteworthy that in the first two forms (Hapalopus ruficeps, EK. Sim., being the 
youngest) the tarsi of all four legs have the scopula divided, while the sternum is 
almost circular. In the next two more advanced forms the scopula of the last two 
pairs of legs alone is divided, and the sternum is more decidedly oval; while in the 
adult female (Crypsidromus pentaloris, E. Sim.) the scopula of tarsus iv. alone is 
divided, and the sternum is elongate-oval as it is in the aduit male now before me. 
An adult male and three immature females have been received from Mr. Sarg from 
Guatemala. 
METRIOPELMA. 
Meiriopelma, Becker, Compt. rend. Soc. Ent. Belg. xxi. p. cclvi (Dec. 1878). 
This genus was instituted by M. Becker for the reception of his Sericopelma breyeri, 
from Guanajuato, Mexico, which had been erroneously included in Ausserer’s 
Sericopelma. M. Becker’s diagnosis of his genus leaves little doubt that its chief 
characteristic is the absence of spurs beneath tibia i., their place being taken by spines. 
The author says “par Vabsence d’éperon au tibia du male” &c., while a few lines 
previously he says “chez le male, tibia de la premiére paire dépourvu d’épines, 
présentant en dessous, a l’extrémité, deux épines mobiles.” Doubtless “ d’épines” is a 
