. LYSIANASSIDAE 37 Remarks. No. i is recorded as being "bright scarlet". The present collection ex- tends the known distribution in the Atlantic to 8° 47' W long., 450 S lat. and to 8° 12' N lat. It would appear that the species is taken in lesser depths during the night than during the day. Distribution. Atlantic: 360 S, 17J0 E, and off Cape Point, S. Africa. Indian Ocean, off East London (South Africa). Pacific. Genus Metacyphocaris, Tattersall. Tattersall, 1906, p. 29. The occasional presence of a rudimentary mandibular palp somewhat weakens the reasons for the generic separation
. LYSIANASSIDAE 37 Remarks. No. i is recorded as being "bright scarlet". The present collection ex- tends the known distribution in the Atlantic to 8° 47' W long., 450 S lat. and to 8° 12' N lat. It would appear that the species is taken in lesser depths during the night than during the day. Distribution. Atlantic: 360 S, 17J0 E, and off Cape Point, S. Africa. Indian Ocean, off East London (South Africa). Pacific. Genus Metacyphocaris, Tattersall. Tattersall, 1906, p. 29. The occasional presence of a rudimentary mandibular palp somewhat weakens the reasons for the generic separation of this form from Paracyphocaris Chevr. The reduced inner ramus of uropod 3, however, is an additional difference between the two genera. Metacyphocaris helgae, Tattersall (Fig. 5). Tattersall, 1906, p. 29, pi. iii, fig. 1, pi. iv. Stephensen, 1923, p. 54. Schellenberg, 1926 b, p. 216 and pp. 235, 238, 241, text-figs. 26 c, 27; 1927, p. 666, fig. 60; 1929, p. 196. Pirlot, 1929 a, p. 8. Occurrence: 1. St. 78. South Atlantic. 2 immat. 11-12 mm. 2. St. 8?. South-east Atlantic. 1 immat. 13 mm. „. ,, . , . , , 0 n ™-i » 1 • ^ •. 1 ,, ,, rig. 5. Metacyphocaris helgae, 3. St. 281. Mid-Atlantic. 1? with brood lamellae 17 mm., Tattersall Mandible of ?> 1 immat. 13 mm (St. 281.) 4. St. 287. Mid-Atlantic. 2 immat. 10-nmm. 5. St. 296. Mid-Atlantic. 1 immat. 11 mm. Remarks. The large ? (no. 3) seems to be the first known specimen which is ap- proximately mature. The brood lamellae are elongate linguiform, with setose margins. It is also remarkable in that both mandibles retain a 2-jointed rudiment of the palp. The ventral surface in the smaller specimens is more or less bulging, a fact which may indicate parasitic (blood-sucking) habits. The known distribution in the Atlantic is much extended by the above finds, viz. to south of the equator (20 49' S) in the Gulf of Guinea, and to 350 S Mid-Atlantic. Distribution. Atlantic: 640 N-470 N, 1800-2800 m. Genus Paralysianopsis, Sche
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