428 Annals of the SoutJi African Museum. 



1905. 8. j., Hansen, loc. cit., makes the same remark on this species 

 as on S. tris tense. 



GEN. EXOSPHCEROMA, Stebbing. 



1900. Exospharoma, Stebbing, Proc. Zool. Soc. London, p. 553. 



1902. E., part, Stebbing, S.A. Crustacea, pt. 2, p. 54. 



1905. E., Hansen, Quarterly Journ. Microsc. Sci., vd. xlix., pt. 1, 



pp. 103, 118. 

 1910. Stebbing, J. Linn. Soc. London, vol. xxxi., p. 220. 



EXOSPHCEROMA GiGAS (Leach) . 



1818. Sphteroma gigas, Leach, Diet. Sci. Nat., vol. xii., p. 346. 



1900. Exospharoma g., Stebbing, Proc. Zool. Soc. London, p. 553, 

 pi. 39. 



1902. E. g., Stebbing, S.A. Crustacea, pt. 2, p. 69. 



No. 8lA, sent by Dr. Gilchrist, from two miles up Buffalo 

 River. No. 132, sent by Dr. Gilchrist, taken in Sebastian 

 Bay on beach at low tide, represents the Exosphceroma 

 lanceolatum (White), the name of which presents a difficulty, 

 since this may have been the form originally described by 

 Leach as Spliceroma gigas, in which case the species with 

 a round- ended telson will require a new name. The lanceo- 

 late form here noted has the telson medio-longitudinally sub- 

 carinate and ends subacutely ; the inner rarnus of the uropods 

 is truncate. An ovigerous female measures 10 mm. 



EXOSPH^ROMA STIMPSOM (Heller). 



1866. Spliceroma stimpsoni, Heller, Novara Crustacea, p. 139, pi. 12, 



fig. 10. 



From the Cape. 

 1905. Exosphceroma xthnpsonii, Hansen, Q. J Microsc. Sci., vol. xlix., 



pt. 1, pp. 116, 118. 



As Hansen has had at command specimens in the Copen- 

 hagen Museum, I accept his ruling that this species belongs 

 to Exosphceroma, but it conflicts with the characters which 

 Hansen himself (loc. cit., p. 103) assigns to the genus, " Last 

 thoracic segment unarmed in both sexes : end of abdomen 

 at most somewhat produced, but not acute," while Heller 

 says of this species that the hind margin of the seventh 

 segment of the thorax is produced into a conical process, 

 and that the telsonic segment has an acute apex. 



