324 



southern forms of this species, not so much by the size, as by the tibia 

 being more roundish, what Balzan does not mention in his description, 

 but what ajjpears from his figure and measurements. 



Subgenus: LamjJrochernes. 

 Clielifer communis Balzan. 

 Argentina: Tala 1 specimen (Dr. Silvestri); Uruguay: Salto 

 1 specimen. 



Chelifer argentinus Thorell. 

 Ecuador: Guayaquil 1 specimen (Vic. Ortoneda). 



Chelifer nitidus Ellingsen. 

 Ecuador: Guayaquil 2 specimens (Vic. Ortoneda), 

 The fingers of this species may be reduced to be only Y.-) o^ the 

 length of the hand. 



Subgenus : Tr ach y che r n e s. 

 Chelifer hrevifemoratus Balzan. 

 Uruguay: Salto 1 specimen; Ecuador: Guayaquil 1 specimen (Vic. 

 Ortoneda). 



Subgenus: Chelifer s. s. 

 Chelifer Qermainii Balzan. 

 Argentina: Tala 1 specimen (Dr. Silvestri). 

 Chelifer longichelifer Balzan. 

 Ecuador: Guayaquil 1 specimen <^ (Vic. Ortoneda). 



Chelifer Canestrinii Balzan. 

 Ecuador: Guayaquil 2 specimens (Vic. Ortoneda). 



Chelifer proxim,us nov. spec. 

 Two eyes, one on each side, near the corners, on small specimens 

 often less conspicuous. 



Body oval, more or less broad. 



Céphalothorax, sclerites and palps brown, legs and interstitial parts 

 of abdomen palish. 



Céphalothorax considerably longer than broad, in the posterior 

 V3 nearly parallelsided, then gradually and roundly narrowing forwards, 

 front margin rounded, the central part nearly straight; strongly granu- 

 lated, opaque, two transverse grooves, the anterior one about in the 

 middle, strong and generally straight, the posterior groove somewhat 

 nearer to the hinder margin than to the anterior groove, considerably 

 less conspicuous and either nearly straight or somewhat curved back- 

 wards in the middle; dispersed, short, slightly davate hairs, often a row 

 of these hairs along the front margin. 



Abdomen: the upper side granulated, opaque, the last tergite entire, 

 the two first tergites are generally entire, the rest divided longitudinally 

 by a fine line, often rather difficult to be seen; along the hinder margins 



