42 Annals of the South African Museum. 



mancnsis. Bate also mentions the presence of an ocellus, of 

 which Alcock says the eye is devoid. 



CHLOEOTOCUS CRASSICORNIS (A. Costa). 

 Plate LXXV. 



1871. Pandalus crassicornis, A. Costa, Annuario Mus. Zool. E. Univ. 

 Napoli, Ann. 6, p. 89, pi. 2, fig. 2. 



1882. Chlorotocus gracilipes, A. Milne-Edwards, Archiv. Missions 



scient. litter. (3), vol. 9 (Senna), 

 p. 18 (Bate). 



1883. ,, ,, A. Milne-Edwards, Recueil figs. Crus- 



tac6s, pi. 16. 



1885. ,, ,, Carus, Prodromus faunae Mediter- 



raneae, vol. 1, p. 474, and Pan- 

 dalus crassicornis, p. 477. 

 1888. Bate, Eep. Voy. Challenger, vol. 24 



pp. 674, 681. 



1904. ,, crassicornis, Senna, Annuario Mus. Zool. E. 



Univ. Napoli, n. ser., vol. 1, No. 18, pp. 1-3, 

 fig. 1 (with synonymy). 

 1914. ,, gracilipes, Balss, Abhandl. K. Bayer. Ak. Wiss., 



Suppl. vol. 2, pt. 10, p. 33. 



The carapace has 11 or 12 dorsal teeth, 4 behind the orbit, 

 the rest on the rostrum, which beyond the eye has 5 ventral 

 teeth ; on each side of the rostrum there is an orbital tooth 

 and an antero-iateral tooth below. The telson has five pairs 

 of dorso-lateral spines, the last pair adjoining the abruptly 

 narrowed apex, which is flanked by a pair of much longer 

 spines and bordered with long setae. The fifth pleon segment 

 has no postero-lateral tooth ; the sixth is dorsally spinulose 

 between two sharp points. 



The eye shows no ocellus. The mandibular palp is dis- 

 tinctly three-jointed ; one cutting-plate has six, the other five 

 teeth. The widely divergent lobes of the lower lip have little 

 sharp tips. The ernarginate palp of the first maxillae is tipped 

 with several setae. The second and third joints of the second 

 maxillipeds are coalesced, with only a small notch in the 

 margin. Other mouth organs agree fairly with those figured 

 by Bate for C. incertus. The first peraeopods are very setose, 

 and on the surface of the simple seventh joint have many 

 rows of microscopic spinules. In the second peraeopods the 

 "chelae are, for a Pandaloid, large," as Alcock observes, 



