574 THE VOYAGE OF H.M.S. CHALLENGER. 



cunctis paulo longioribus quam latioribus (in G. imlice 10-13-articuIato), segmentis cauda? 

 ultimis ut in G. pulice spinis in fascicules tres ordinatis munitis. Csetera ut in G. pulice. 

 " Gammari locustse, vakle affinis, oculis antennisque superioribus fere sLmilibus, sed antennarum 

 iuferiorum flagello multo breviore articulis paucioribus et fere teretibiis differt (in G. loctista 

 flagello robustiore paulum depresso 15-20-articulato, articulis saltern 2-5 latioribus quam 

 longioribus)." 



1885. Spencer, Walter Baldwin, born 18G0 (W. E. Hoyle). 



The urinary organs of the Amphipoda. Reprinted from the Quarterly Journal 

 of Microscopical Science for April, 1885. Loudon, 1885. Micr. Journ. 

 Vol. XXV., N.S. PL XIII. 



The views of earlier writers on these organs are stated. Mr. Spencer has investigated them 

 specially in Talitnis locusta, in which the two tubes in question open at a considerable 

 distance from the anus and run backwards instead of forwards, as in Gammarus, to end 

 blindly in the last segment. Their openings into the gut are lateral, not dorsal as in 

 Gaimnams. In certain specimens these tubes were found to contain very definite con- 

 cretions, of which :Mr. Spencer says, " distilled water does not dissolve them, nor is there 

 any uric acid present, but I have been able to clearly detect phosphoric acid, and hence 

 they seem to differ from those found by Nebeski in Orchestia cavimana, where he states 

 that they consist of carbonate of lime." The general result agrees with Mayer's view of 

 these organs, which Mr. Spencer gives as follows : — 



" Mayer has also described them in the Caprellidie, where he states that they are weU developed 

 in Caprella, and absent, or only very feebly developed, in Protella, Proto, and Podalirius, 

 but when present he has never found in them characteristic concretions, and is very 

 decided in asserting that throughout the Amphipoda these diverticula, whatever may be 

 their function and whether they contain excretionary products or not, belong morpho- 

 logically to the mid and not to the hind gut, and that hence they cannot be considered as 

 analogous to the Malpighian tubes of insecta. He states that there is always present a 

 sharp break in the epithelium where the mid and hind gut meet, and that the chitin lining 

 of the latter is not continued into the tubes whose epithelium resembles that of the mid, 

 and not that of the hind gut." 



1885. Stebbing, T. R. R. 



Description of a neiv English Amphipodous Crustacean. The Annals and 



Magazine of Natural History for January 1885. Ser. 5. Vol. XV. PI. II. 



pp. 59-62. 



Cijproidia damnoniends, n. sp. is here described and figured, and the correspondence pointed 

 out between the genus Cyproulia, Has well, 1880, and the genus Stegoplax, G. 0. Sars, 

 1882. Both may have been anticipated by Peltocoxa, Catta. See Note on Catta, 1875. 



1885. Stebbing, T. R. R. 



In Narrative of the Cruise of H.M.S. Challenger. Vol. I. Second Part. 



London, Edinburgh, Dublin, 1885. pp. 618-622. 



Figures are given of Andania gigantea and Acantliozone tru-arinata, the latter of which is now 

 transferred to a new genus, Acanthechinus. In this part of the Narrative also the figure by 



