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Show 1899.] PARASITIC COPEPODA O N FISHES. 501 (2) TRACHELIASTES MACULATUS. 2 • Tracheliastes maculatus Kollar, Ann. Wien. Mus. i. 1841, p. 85. M.-E. Hist. Nat. Crust, iii. 1840, p. 507. Host: Cyprinus brama [Abramis brama]. (3) TRACHELIASTES STELLIFER. 2 • Tracheliastes stellifer Kollar, op. cit. p. 82, pl. ix. fig. 8. „ „ M.-E. op. cit. p. 508. Host: Silurus glanis. G. 8. BRACHIELLA CUV. Cephalothorax markedly thin and elongated, vermiform. First maxilliped placed close behind mouth ; second mostly long, armlike, generally divided up to the ends, where is found the organ of attachment. Genital segment oval or quadrilateral. Abdomen simple. Male. Pigmy, attached to body, neck, or maxillipeds of female. Cephalothorax distinctly divided from the long segmented abdomen by a marked constriction ; both pairs of maxillipeds large, uncinate. (1) BRACHIELLA BISPINOSA. 2 cf • Brachiella bispinosa Nordm. Mikrogr. Beitrage, 1832, p. 94, pl. viii. fig. 4. M.-E. Hist. Nat. Crust, iii. 1840, p. 513. C. Vogt, Arch. Zool. Exp. 1877, p. 426. „ bicaudata ? Kr. Tidsskrift, i. 1837, p. 275, pl. iii. fig. 2. ,, „ M.-E. op. cit. p. 515. B.-S. Journ. M . B. Assn. Plymouth, 1896, p. 163. In Coll. Brit. Mus. Host: gills of Trigla spp. Europe. (2) BRACHIELLA LOPHII. 2 • Brachiella lophii M.-E. Hist. Nat, Crust, iii. 1840, p. 514, pl. xii. fig. 4. „ C. Vogt, Arch. Zool. Exp. 1877, p. 426. Host: Tjophius sp. Naples. (3) BRACHIELLA ROSTRATA. 2 • Brachiella rostrata Kr. Tidsskrift, i. 1837, p. 207, pl. ii. fig. 1. „ „ M.-E. Hist. Nat. Crust, iii. 1840, p. 514. C. Vogt, Arch. Zool. Exp. 1877, p. 426. In Coll. Brit. Mus. Hosts: gills of Pleuronectes pinguis, P. [Bhombus] maximus, Hippoglossus vulgaris. North Sea, Greenland. PROC. ZOOL. Soc-1899, No. XXXIII. 33 |