578 " THETIS " SCIENTIFIC RESULTS. 



This species is notable for having the telson much shorter than 

 in the other species of the geaus except A. brunneus, Delia Valle. 

 Mr. Walker in 1901 questions whether this, along with his own 

 A. melanops, and Delia Valle's A. neapolitanus, may not be 

 synonymous with A. marionis. 



Locality. — Off Manning River. 



Genus CYPROIDEA, Haswell. 



Cyproidea, Haswell, Ann. Mag. Nat. Hist., (5), v., 1880, p. 31. 

 Cyproidia, Chilton, Ann. Mag. Nat. Hist., (7), v., 1900, p. 243. 

 Gallea, Walker, Hep. Ceylon Pearl Oyster Fish., ii., 1904, pp. 



232, 256. 

 Cyproidea, Stabbing, Das Tierreich, xxi., 1906, pp. 157, 723. 



In 1900 Dr. Chilton added to this genus the species C otakensis, 

 using for the generic name Haswell's alternative spelling 

 Cyproidia. 



CYPROIDEA ORNATA, Haswell. 

 Station 28. 



Cyjjroidia oriiata, Haswell, Proc. Linn. Soc. N. S. Wales, iv., 



1880, p. 320, pi. xviii., fig. 1. 

 Gallea tecticauda, Walker, Rep. Ceylon Pearl Oyster Fish., ii., 



1904, p. 256, pi. iii., fig. 16, pi. viii., tig. 16. 

 Cyproidea ornala, Stebbing, Das Tierreich, xx., 1906, p. 158. 



There can be little or no doubt that Mr. A. O. Walker's Gallea 

 teciicanda is identical with the present species. The peculiar 

 characters described by Haswell and found in the "Thetis" 

 specimen, are numerous. They agree with Mr. Walker's descrip- 

 tion and figures except as regards the gnathopods, the positions 

 of which he has evidently inverted, since his figure of the supposed 

 first gnathopod shows a branchial vesicle, plainly proclaiming 

 that the limb is really not the first gnathopod but the second. 

 These limbs are in fact so closely attached one to the other that 

 their relative position may be easily confused. The specific name 

 tecticauda very appropriately referred to the curious " roof-like 

 projection " of the sixth pleon segment over the boat-shaped 

 telson. 



Locality. — Off Manning River. 



Genus G I T A N O G E I T O N, ^en. no-y. 



Upper lip deeply incised. Lower lip with cavity on inner 

 margin of principal lobes, as in Giianaaud Gitanopsis, mandibular 

 processes obtuse. Mandibles with broad straight cutting edge 



