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Show 446 MR. P. W. BASSETT-SMITH ON [Apr. 18, backwards on either side by two elongated blunted processes. Abdomen long, consisting of two joints terminating in two minute caudal plates. (1) SYNESTIUS CALIGINUS. 2 • Synestius caliginus Stp. & Liitk. Bidrag til Kundskab, 1861, p. 364, pl. vi. fig. 11. Host: gills of Stromateus paru BI. [S. niger]. Indian Ocean. G. 4. CALIGODES Heller. Carapace very small, rounded. Frontal border with minute lunulae. First and fourth thoracic limbs uniramose; second and third biramose. Genital segment flask-shape, produced forwards as a long neck, posteriorly elongated into two divergent leaf-like processes. Abdomen large, broad, with two minute caudal plates. (1) CALIGODES LAOINIATUS. $ . Chondracanthus laciniatus Kllr. Scicenophilus „ Kr. Bidrag til Kundskab, 1863, p. 153, pl. viii. fig. 3. Caligodes „ Heller, Beise d. Novara, 1865, p. 180. Host: Belone sp. Indian Ocean. (2) CALIGODES CARANGIS. $ . Caligodes carangis B.-S. Ann. & Mag. N. H. ser. 7, vol. ii. 1898, p. 364, pl. xi. fig. 4. In Coll. Brit. Mus. Host: Caranx ferdau. Aden. G. 5. CALIGUS Miiller. Carapace large, scutiform. Frontal border provided with lunulae. First and fourth thoracic limbs uniramose ; second and third biramose. Fourth thoracic segment free, small, without dorsal plates. Genital segment without plates or processes. Abdomen with two terminal caudal plates. Division 1. Abdomen with single joint. (1) CALIGUS ABBREVIATUS. $ 8. Caligus abbreviatus Kr. Bidrag til Kundskab, 1863, p. 61, pl. iii. fig. 4. Host: Labrus bergylta [L. maculatus]. Bergen. (2) CALIGUS PARVUS. $ J. Caligus parvus B.-S. Ann. & Mag. N. H. ser. 7, vol. i. 1898, p. 5, pl. ii. fig. 1. In CoU. Brit. Mus. Host: gills of Tetrodon oblongus. Bombay. |