162 abstracts: helminthology 



upon for a supply when the immense stands on private holdings have 

 been cut away. Plans made for logging in the Forest for the next ten 

 years contemplate a cut during that period of 300,000,000 board feet. 



While the Forest contains some mountain meadows, present conditions 

 are almost prohibitive of stock raising. Without the heavy forest 

 cover to check the swift runoff of the enormous winter rainfall, much 

 land on the Olympic Peninsula would be likely to suffer serious damage. 

 Extensive waterpowers await development, and the dense cover will be 

 of the utmost importance in preventing alterations in the character of 

 the streamflow. There is practically no mining development on the 

 Forest at present though both gold and copper have been found. The 

 region offers little opportunity for agriculture. F. B. 



HELMINTHOLOGY. — Some known and three new endoparasitic trema- 

 todes from American fresh-water fish. Joseph Goldberger, U. S. 

 Public Health and Marine-Hospital Service. Bulletin Hygienic 

 Laboratory No. 71. 1911. 



Leuceruthrus micropteri originally described by Marshall and Gilbert, 

 1905, is redescribed and some new points are added to the original 

 description. It is probable that the genus Leuceruthrus, of which this is 

 the type and only species, will be found to represent the type of at least 

 a new subfamily, Leuceruthrinae, and probably of a new family, Leuceru- 

 thridae of the superfamily Fascioloidea. 



Two new species of Azygia, namely, A. acuminata and A. bulbosa 

 are described and some new points in the anatomy of Azygia loossii 

 Marshall and Gilbert, 1905, are added to the original description. A key 

 to the species of the genus is given, but it does not include Azygia sebago 

 Ward, 1910. The latter species is evidently very close to A. bidbosa. 



The genus Hassallius is created for a new species, Hassallius hassalli 

 from the stomach of Ambloplites rupestris. 



On some new parasitic trematode worms of the Genus Telorchis. Joseph 

 Goldberger. Bulletin Hygienic Laboratory No. 71. 



The author considers Telorchis poirieri, Stossich, 1904 to be distinct 

 from Dist. poirieri (= Dist. gelatinosum'Pomer) Stossich, 1895 and proposes 

 for it the name Telorchis (cercorchis) stossichi. Two new species are 

 described and a key to the species of Telorchis is given. 



A new species of Athesmia (A. foxi) from a monkey. Joseph Gold- 

 berger and Charles G. Crane. Bulletin Hygienic Laboratory No. 71. 



The trematode genus Athesmia for many years included only the single 

 species described by Braun in 1899 under the name of Distomum hetero- 



