Transactions of the American Microscopical Society Volume 29 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1909 Excerpt: ... ON THE MOEPHOLOGY AND DEVELOPMENT OF A NEW CESTODE OF THE GENUS PROTEOCEPHALUS WEINLAND w1th Foub Plates. GEORGE R. LARUE. Since Fuhrmann's work, "Die Taenien der Amphibien," a considerable number of species have been added to the Genus Proteocephalus, the addition being made from the cestodes of snakes and of fishes. No further Proteocephalus species have been recorded from the group of Amphibia. It is my purpose to describe in this paper the cestode Proteocephalus filaroides, n. sp. from Amblystoma tigrinum Baird. Dr. J. H. Powers of the University of Nebraska, in carrying on a series of investigations on Amblystoma tigrinum, found a cestode parasite occurring in considerable abundance. Some fragments were turned over to Dr. Henry B. Ward, who later interested the writer in this form. Besides the fragments collected by Dr. Powers and placed at my disposal through the kindness of Dr. Ward, specimens have been collected from Amblystoma tigrinum in Cherry County, Nebraska, at Crete, Neb., and at Belleville, Kan. The host is quite abundant in the region west of the Missouri river, and, since infect1on is almost general, the accumulation of a relatively large amount of material has been fairly easy. Liihe (1899) gives certain reasons for retaining the name Ichthyotaenia suggested by Lonnberg (1894) for this group. However, since the name Proteocephalus Weinland (1858) has the right of priority, it should be used to denominate the genus. Material has been killed in formol, corrosive-acetic, picro-sublimate-formol, Kleinenberg's picro-sulfuric with an equal part of 5 per cent, solution of corrosive sublimate to which 5 per cent, acetic acid has been added, and in other killing and fixing agents. Killing fluids were generally used hot, and, since the species is s...