36 ILLINOIS ACADEMY OF SCIENCE 



mile of the shore at the southern end of Lake Poopo 

 According to F. M. Chapman they are principally winter 

 residents. Many birds were found to be parasizited by 

 tapeworms and Acanthocephali. 



The lack of game fishes is much lamented both by the 

 people of the country and by the English and American 

 residents of the altiplane — principally employes of the 

 mining companies. They regard the clear, cold, swift 

 Mantaro and other rivers as well suited to trout produc- 

 tion. Mr. A. S. Kalenborn of Oroya, and others, have 

 made an effort, so far unsuccessfully, to procure from 

 this country trout eggs or young. 



In spite of the inferior quality of the native fish, the 

 fishing industry is of considerable importance in Lake 

 Titicaca. The chief Peruvian and Bolivian ports, Puno 

 and Guaqui respectively, are noteworthy as fish markets. 

 Many fish are shipped from these ports to La Paz and 

 Arequipa. The Rio Eamiz and its tributaries at the 

 north and the Desagiiadero at the south are fished for 

 suches. Suches are also taken in the lake, and when 

 properly prepared are better than the Orestias. But they 

 are much less plentiful and more expensive, especially 

 when twelve to fifteen inches in length. Hispes (an 

 Orestias) are taken when about three inches in length and 

 dried entire. In this state they are marketed at great 

 distances — even at Cuzco and beyond — and are much 

 prized by the lower classes. 



The smaller Orestias, hispe and earache, sometimes 

 occur in remarkable concentration, especially in the 

 meadow ponds of the pampas. Frequently scores of them 

 may be dipped up with a single swoop of the dipnet. Even 

 a roadside sheep-washing pool, v/ithout outlet and very 

 muddy, contained a multitude of isolated, pallid eara- 

 chitos. In the same pools occur also vast numbers of 

 small Dytiscid beetles. As a result of this concentration 

 no fish was found which did not have the fins more or 

 less abbreviated. 



