. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. On a new Genus of Salmonoid Fishes, 329 In the female the ventral area of the third segment is raised _ behind the sternal piece to which the legs are articu- lated, into a convexly margined plate. In the male the distal segment of the copulatory organ arises on the inner surface of the apex of the basal segment, and is curved inwards to meet its fellow of the opposite side, the two then running forwards closely in contact with each other, the apex being curled ventrally and v
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. On a new Genus of Salmonoid Fishes, 329 In the female the ventral area of the third segment is raised _ behind the sternal piece to which the legs are articu- lated, into a convexly margined plate. In the male the distal segment of the copulatory organ arises on the inner surface of the apex of the basal segment, and is curved inwards to meet its fellow of the opposite side, the two then running forwards closely in contact with each other, the apex being curled ventrally and very slightly bifid. (3) Cylindrodesmus villosus, sp. n. Colow^ of adult a pale yellowish brown, the sixth seo-ment of the antenna infuscate; the forehead darker than the lower part of the head. The female of this species differs in scarcely anything, so far as I have noticed, from C. hirsutus; but the male may be at once recognized from the male of hirsutus and of Struhelli by the form of the copu- latory organ, which ends in two subsimilar ventrally turned branches, of which the proximal is much shorter than the distal. Length of female up to 6'o millim. The males of the three known species may be recognized as follows :— a. Apex of copulatory organ simple or -very slightly divided; length 7-8 millim. «'. Apex of the copulatory organ bent ventrally and weakly bitid hirsutus, Poc. (Christmas Island. 1 ¥. Apex of copulatory organ undivided and bent dorsally Struhelli (Yerh.). (Amboina.) b. Copulatory organ ending distally in two subsimilar branches directed ventrally j length up to 5| i^illiJii villosua, sp. n. (Rotuma.). LIV.— On a neio Genus of Salmonoid Fishes from the Altai Mountains. By Gr. A. BouLENGER, A SINGLE example of a remarkable Salmonoid from the south side of the Altai Mountains, on Chinese territory, was brought home by Mr. St. George Littledale from his recent expedition, and presented by him to the British Museum. The specimen was unfortunately dri
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