32 Annals of the South African Museum. 



teeth, regularly graduated in the third and fourth segments but 

 irregularly in the fifth ; in the sixth segment the outer tooth is 

 followed not by a convex hind border but by an oblique truncate 

 crenulate lateral margin. The telson is squarish, distally truncate, 

 but with the corners rounded. 



The fifth peraeopods are simple in the male specimen, but in the 

 two female specimens which still possess them they are, as might be 

 expected, chelate. The tooth-like prolongation of the sixth joint, 

 however, is here so short in comparison with the finger that it would 

 scarcely have been thought of as chela-forming but for its fuller 

 development in other species, such as S. aquinoctialis. It may be 

 noticed that in de Haan's plates 8. sieboldi is the figure of a female, 

 S. haani of a male, to judge by the fifth legs. 



A dried specimen, female, some of the legs missing, from Algoa 

 Bay, measures 93 mm. across the front of the carapace. Another 

 dried specimen, also a female, probably from the same locality, 

 measures 60 mm. across the front, with a length of 130 mm., or, 

 including the second antennae, 165 mm. These are from the Durban 

 Museum. The following were collected by Dr. Gilchrist. 



A male specimen from Cape St. Blaize W. J N. 5^ miles, 

 depth 28 fathoms, bottom fine dark sand, measures 80 mm. across 

 the front, 180 mm. in length, or with antennae 225 mm. 



A female specimen, from St. Sebastian Bay, depth about 20 

 fathoms, measures across the whole front 70 mm., between the orbits 

 38 mm., the carapace 70 mm. long, or with rostral process 75 mm., 

 the pleon 105 mm. long; total length of the specimen, including 

 the second antennae, 220 mm. ; second pleon segment 60 mm. broad, 

 sixth 42 mm. broad, telson 33 mm. broad and 27 mm. long. 



This, which is the subject of the photographic plate, was received 

 at 10.30 a.m. on Sunday morning, March 26, 1905. Mr. J. Stuart 

 Thomson, writing from the Cape, March 8, 1905, explained its place 

 of origin, and added, "We received it yesterday in the fresh condi- 

 tion, and have had it frozen, as we thought you might find it 

 interesting." The post-office at Tunbridge Wells, entering into the 

 spirit of the transaction, gave it a special delivery on Sunday, and 

 the messenger contributed his own advice that the cooking might 

 safely be delayed till a more secular opportunity. As received, 

 the colouring was dorsally a fine bright red, enhanced by the grey 

 pattern on the lower part of the second antennas, on the middle of 

 the carapace, and the middle of its distal border, the latter part, 

 however, having in the actual centre a bright red spot. The first 

 pleon segment has an alternation of four grey and five red patches, 



