44 "ENDEAVOUR" SCIENTIFIC RESULTS. 



France, named "Tryphosa nana," and I cannot find any 

 reliable character by which the two sets of specimens can 

 be distinguished. These specimens from Le Croisic agree 

 on the whole with the description and figures given by Sars, 

 but have the fourth segment of the pleon in some cases 

 at any rate distinctly keeled, while S'ars describes his species 

 as being easily known "by the absolute want of any dorsal 

 projection" on the fourth segment of the pleon. The Le 

 ('roisic specimens, however, seem to show, just as do the 

 'Endeavour" ones, that this character is by no means 

 constant, but is subject to considerable variation in speci- 

 mens collected at the same place and time. Tu the peraeopods 

 again the Le Croisic specimens agree in the expanded meral 

 joints with the "Endeavour" specimens, though the basal 

 joint is perhaps a little shorter in proportion to the rest of 

 the limb. In one of the Le Croisic specimens again the 

 telson has three lateral spinules as in T. cam el us instead 

 of the two mentioned by Stebbing for T. sarsi. 



The two species described by Sars under the names of 

 T. nana- and T. Tforinfjii are united by Bella Valle. and 

 in this I am very much inclined to agree with him. He, 

 however, considers them to be the same as Anonyx nana, 

 Kroyer, which is considered by Stebbing to be a different 

 species and is included in "Das Tierreich" Amphipoda 

 under the name Orchomenella itauus (Kroyer). 



It should be added that Walker in 1904 (p. 244) 

 described, on a single male specimen from Ceylon, a new 

 species, Tryphosa cucttHata. which, he says, "is distin- 

 guished by the peculiar hooded character of the peduncular 

 joints of the upper antennae." At the same time he 

 recorded the occurrence in the seas of Ceylon of Orchomr- 

 nella nanits (Kroyer) which had been collected in a dif 

 ferent locality at a different time. 



ENDEVOURA* MIRABILIS, nov. gen. et sp. 

 (Fig. 4 a-q.) 



Locality. East Coast of Flinders Island, Bass Strait, 

 Numerous specimens. (Reg. No. E.4845.) 



The generic name has been formed by a slight alteration from the 

 word "Endeavour." the name of the vessel by which the specimens 

 were collected. 



