376 Aimals of the SoiUJi African Museum. 



1888. P., Bate, Challenger Macvura, vol. xxiv., pp. see index, p. 939. 

 1893. P., Ortmann, Decap. und Schizop. Plankton-Exp., p. 8H. 



" Phyllosoma sp., Stebbing. 

 1910. Plii/llosoina sp., Stebbing, S.A. Crustacea, pt. 5. 



No. 64, a specimen sent by Dr. Gilchrist, was obtained off' 

 Lion's Head N. 63 E., 34 miles, depth of haul 282 m. This 

 specimen in many respects resembles Pliyllosoma lonqipes, 

 Milne-Edwards, a species very inconveniently instituted by 

 that author in the explanation of pi. 57, figs. 4, 4a-(/, in the 

 undated volume of the Crustacea, E6gne Animal, ed. 3. As 

 it is not included by M.-Edw. in his Hist. Nat. Crust., vol. ii., 

 1837, its date is evidently not earlier than that year. Our 

 specimen agrees in the widely rounded cephalic buckler, with 

 frontal projection carrying the long- and slenderly-stalked 

 eyes, the first antenna with their rather short primary and 

 secondary flagella, and the second antennae, fully three times 

 as long as the first, with the peduncle simple, that is, not 

 having any outstanding process. Far to the rear are seen the 

 second and third maxillipeds, both with vesicles at the base, 

 both very slender and the third pair very long. To these 

 succeed five pairs of very long slender perffiopods, also fur- 

 nished with minute branchial vesicles, two sets to each of 

 the first four, but a single one to the fifth. The first four 

 pairs have a secondary branch ending in a natatory flagel- 

 lum. The fifth pair has no secondary branch attached to 

 the second joint, but has the following joint longer than 

 in the other pairs. In P. longipes Milne-Edwards repre- 

 sents the fifth leg with a secondary branch, and the third 

 joint not longer than in the preceding pairs. In the pleon 

 the two specimens appear to agree, so far as there is ground 

 for judging. In the new one, the tail-fan is exceedingly 

 like that of an adult Panulirus ; the four pairs of pleopods 

 have two nearly equal rami, the inner ramus carrying a 

 coupling-plate or appendix interna. In the female of Jasus 

 lalandii the pleopods of the second segment are without this 

 appendix, but it is strongly developed on the three following 

 pairs. Claus in 1863, loc. cit., p. 430, pi. 27, fig. 11, discusses 

 a large specimen, in which the second antennse are short, 

 with outstanding process, and the last peraeopods are short, 

 but otherwise showing near agreement with our example. 

 Claus suggests that his specimen may be a Scyllarid larva. 



