No. 10. — A Nno Species of Peripafus from the Moimiahis of Northern 



Peru. 



CONTRIBUTIONS FROM THE ENTOMOLOGICAL LABORATORY OF THE 

 RUSSEY INSTITUTION, No. \:u. 



By Charles T. Brues. 



On a recent trip to Peru, Mr. G. K. Noble, Zoologist of the Expedi- 

 tion to Peru, under the joint auspices of the School of Tropical 

 Medicine and the Museum of Comparative Zoology, secured six fine 

 specimens of Peripatus which represent an hitherto undescribed 

 species. These were obtained at Tabaconas, near Huancabaniba at an 

 altitude of about 6000 feet. Tabaconas is on the third or eastern range 

 of the Cordilleras less than 100 miles south of the Ecuadorian boundary 

 and some 200 miles south of Cuenca in Ecuador where Peripatzis 

 cameranoi was discovered by Festa over twenty years ago. The new 

 species is closely related to this Ecuadorian form, and also to several 

 others from the same region, but I feel satisfied that it is specifically 

 distinct from all of them. 



The specimens were found by Mr. Noble while searching for reptiles 

 beneath stones along the roadside and occurred in a moderately dry 

 locality. From obser^'ations which he made on the general fauna, 

 he regards the area' inhabited by the Peripatus as distinctly a narrow 

 extension of the P^cuadorian region and not similar to the other 

 Peruvian places either due east or west where he collected in travelling 

 inland from the arid coastland. 



The species falls into the group of andicolous species as defined by 

 Bou\ier and separated as tlie sul)genus Oroperipatus by Cockerell 

 in 190S. Since then Oroperipatus has been elevated to generic rank 

 by Clark. The new form may be known as: 



Peripatus (Oroperipatus) peruvianus, sp. nov. 



Size and form. All of the females, four in number are rather stoutly 

 built, broadest just before the middle and gradually narrowed behind. 

 They range in width from 7.5 to 9.0 nun., but as they are undoubtedly 

 somewhat contracted, must ha\e been more slender in life. One is 



