188 Messrs. J. Wood-Mason and A. Alcock on 



2. Gnathophausia gracilis, Suhm, var. brevispinis. 



Gnathvplmusia gracilis, Suhm, Trans. Linn. Soc. Lond., Zool. ser. 2, 

 vol. i. p. 33, pi. ix. fig. 1 ; Sars, Chall. Rep. vol. xm. pt. xxxvu. 

 Schizop. p. 48, pi. vii. figs. 6-10. 



Our specimen differs from the one figured by Suhm in the 

 small size of the spines of the infero-posterior corners of the 

 carapace, the lower one of which is reduced to a minute 

 outstanding point only visible when the animal is viewed from 

 above. It may perhaps be found to differ also in the form 

 and relative proportions of the wing-like antennal and bran- 

 chiostegal spines, as well as in other respects, when better 

 specimens of the typical form shall be available for com- 

 parison. In the meantime it will suffice to indicate it as a 

 variety. 



Length from tip of rostrum to apex of telson 82 millim. 



Both the above specimens would appear to be males. 



Order DECAPODA. 



Family Penseidae. 



Hymenopen^eus, S. I. Smith. 



3. Hymenopenceus ?microps } S. I. Smith. 



Hynmiopenmis ? microps, S.I. Sniith/Anu. Rep. Comm. Fish. 1884, 

 p. 413 [69], pi. x. fig. 1. 



Three specimens have been obtained — a male and a female 

 from Station 104, 1000 fathoms, and a male from Station 105, 

 740 fathoms — of a species answering to Prof. Smith's dia- 

 gnosis. They are all coloured a very deep vinous purple 

 mottled with black, and are still of a deep wine-red, except 

 the last two pairs of legs. 



> SOLENOCERA, Lucas. 

 4. Solenocera Hextii, sp. n., Wood-Mason. 



A strikingly beautiful Penasid of a bright pink colour was 

 obtained in fair abundance at Stations 81 and 96, in 89 to 

 102 fathoms. It is remarkable for the great development of 

 the respiratory mechanism in all its parts, especially the 

 branchial chambers, the afferent and efferent divisions of 

 which are sharply defined externally by the special promi- 

 nence of the coincident parts of the branchiostegite, and 

 also for the form of the antennules. These are shorter 



