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Show 55 55 55 55 55 55 55 55 490 MR. P. W. BASSETT-SMITH ON [Apr. 18, the thoracic segment are distinctly seen the mouth, maxillae, and two pairs of maxillipeds. Body large, convex above, concave beneath, robust, with margins deeply incised; it is divided into two portions, the thoracic bearing on the ventral side two pairs of blunt lobed processes, and the genital rounded and larger. Abdomen biarticulate. Egg-sacs elongated, claviform. Male pigmy as in Chondracanthus. ORALIEN ASELLINUS. cf 2 • (Plate XXVI. figs. 1, & la-lc.) Lerncea asellina Linn. Fauna Suec. 1761, p. 510. Lerncentoma triglce Blainv. Jour, de Physique, xcv. 1822, p. 441, pl. lxii. fig. 12. „ „ Blainv. Diet, des Sc. Nat. xxiv. 1823, p. 125. Chondracanthus triglce Nordm. Mikrogr. Beitrage, ii. 1832, p. 116, pl. ix. fig. 1. Guerin, Iconograph. pl. ix. fig. 8. Kroyer, Tidsskrift, ii. 1838, p. 135, pl. iii. fig. 33. V. Ben. Ann. Sc. Nat. 3 ser. xvi. 1851, p. 109. M.-E. Hist. Nat. Crust, iii. 1840, p. 502. Stp. Bull. Soc. Boy. Dan. 1869, pl. ii. fig.l. „ B.-S. Ann. & Mag. N. H. ser. vi. 1896, p. 13, pl. iv. fig. 4. Lernentoma asellina Baird, Brit. Entom. 1850, p. 329, pl. xxxv. fig. 4. Chondracanthus gurnardi Kr. „ „ Stp. Bull. Soc. Boy. Dau. 1869, pl. ii. fig. 3. In Coll. Brit. Mus. Hosts : gills of Gadus sp. and Trigla spp. Europe. G. 4. STRABAX Nordm. Head oblong, with six knob-like swellings. Body elongated, widening posteriorly, where it gives off on either side four filiform processes. Abdomen pyriform, 5 as long as processes ; limbs suppressed. Male pigmy, distinctly segmented, and provided with limbs. (1) STRABAX MONSTROSUS. cf 2 • Strabax monstrosus Nordm. Bull. Soc. Imp. N. H. Moscou, 1864, t. xxxvii., pl. v. fig. 10. Host: Scorpcena porcus. Mediterranean. G. 5. TRICHTHACERUS Kroyer. Head short, dilated, separated from the oval non-segmented body by a constriction. Abdomen small, articulate. Anterior |