. Copepoda. Calanoida; Copepoda. COPEPODA 83 (fig. 5 a) the terminal spine has about 80 densely placed, partly fused, spinules; in other respects, except the arrangement of pores, which, except for the more medial position is like that of Ch. obtusifrons etc., the legs are like those of preceding species. Occurrence. The S/S. Thor has gathered a few specimens of this species at the following two stations. 2I/6 1904. St. 154. 65°27 h. N. 27°io L. W. Yt. ? Wire 3 f ?. "/7 1904. St. 183. 6i°30 h. N. i7°o8 Iv. W. Yt. 1800 M. Wire 2 f?. Remarks. This species, which seems to stand between the s
. Copepoda. Calanoida; Copepoda. COPEPODA 83 (fig. 5 a) the terminal spine has about 80 densely placed, partly fused, spinules; in other respects, except the arrangement of pores, which, except for the more medial position is like that of Ch. obtusifrons etc., the legs are like those of preceding species. Occurrence. The S/S. Thor has gathered a few specimens of this species at the following two stations. 2I/6 1904. St. 154. 65°27 h. N. 27°io L. W. Yt. ? Wire 3 f ?. "/7 1904. St. 183. 6i°30 h. N. i7°o8 Iv. W. Yt. 1800 M. Wire 2 f?. Remarks. This species, which seems to stand between the species of Chiridius without rostrum and Ch. uasutus, is well characterized by the shape of the rostrum and the position of the glan- dular pores. 19. Chiridius obtusifrons G. O. Sars. (Plate II figs. 2 a—h; text-figs 20 a—e). 1907 iqo8 Chiridius armatus Boeck. Vauhoffen, pp. 519—521. — obtusifrons G. O. Sars. v. Bremen, pp. 34 —35, fig- 37- 1909. nee. Chiridius? obtusifrons G. O. Sars. A. Scott, p. 43, pi. XL1V figs 1-3. 1913. pars. — armatus Boeck. Stephensen, pp. 316—317. 1S97. Pseudocalauus armatus Boeck. Vauhoffen, p. 279, fig. 6. 1900. Chiridius armatus Boeck. G. O. Sars, pp. 29—30, pi. XVII. 1902. — — — Mrazek, pp. 521—22. 1903. Chiridius obtusifrons n. sp. G. O. Sars, pp. 29—30, pi. 17. 1904. — — G. O. Sars. Wolfenden, p. 131. 1904? — Vanhoffeni n. sp. Wolfenden, p. 117, pi. IV fig- 23. 1907. — obtusifrons G. O. Sars. Koefoed & Damas, p. 408. Description. f$. Size: Specimen from Thor St. 214 measured 4*39 mm.; anterior division 3-12 mm., urosome 1-27 mm. Sars' specimens measured 4-2 mm. and Vanhoffens 4-5 mm. b The shape of the body is as figured by Sars (cf. text-fig. 20 a). The articular membrane between the head and first thoracic tergite and between the fourth and fifth thoracic tergite (except in the middle) is often wanting; in the articular membrane be- tween the last thoracic and the first abdominal somite chitinous lists
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