1628 THE VOYAGE OF H.M.S. CHALLENGER. 



under that title, probably awaiting an examination of tbe mandibles for its transfer to 

 Metopa or Stenothoe ; CEdiceros xquicornis, which "comes near to (E. brevicalcar of 

 Goes"; Syrrhoe hamatipes, of which Norman says, "I place this species provisionally in 

 the genus Syrrhoe ; the head having been crushed, I am unable to speak with precision 

 respecting the eyes and rostrum ;" Atylus macer, a species not mentioned in the Museum 

 Normanianum, 1886, and almost certainly not belonging to Atylus, since the fifth and 

 sixth pleon-segments are apparently not coalesced ; Megamphopus cornutus, " species 

 typica"; Protomedeia pectinata; Cyrtophium armatum, of which Norman says, "the 

 sixth and seventh segments of the pereion appear to be coalesced. It approaches Lxtmato- 

 philus tuberculahcs of Bruzelius, but is much more strongly tuberculated, and the 

 gnathopods of different structure, the first smaller, the second larger, the hand broader, and 

 the basos spined"; in 1886 he names it Ledmatophilus armatus ; Corophium tenuicome, 

 the female only observed, and that "resembling in general characters the same sex of 

 longicorne and crassicorne." The new genus Megamphopus is defined as follows : — 

 " Antennae slender (imperfect), the insertion of the lower so much behind that of the upper 

 that the end of the third joint of the peduncle is only on a level with the end of the head. 

 First segment of pereion produced forwards and downwards on each side into a remarkable 

 horn-shaped process. Both pair of gnathopods greatly developed, of equal size, and 

 subchelate. First three pereiopods short, last two much longer. Telson tubular." 

 There are numerous notes on species not new, referring principally to the synonymy. On page 

 275, " Anonyx ampulla (Phipps). Cancer ampulla, Phipps," is given by mistake for 

 Cancer nugax, Phipps. Descriptions more or less complete are given of the species 

 named " Probolium Alderi (Bate) = Montagui Alderi, B. & W."; " Ampelisca xquicornis, 

 Bruzelius " ; " Ampelisca tenuicornis, Lilljeborg " ; " Ampelisca carinata, Bruzelius, . . . 

 = Ampelisca Gaimardi, Bate, . . . (but not A. Gaimardi of Kroyer and Bruzelius)"; 

 "Ampelisca laevigata, Lilljeborg"; "Ampelisca macrocephala, Lilljeborg," with the remark 

 that "the Ampelisca Belliana of Bate appears to be referable to this species " ; " Eusirus 

 Helvetia, HaXe = Eusirus hidens, Heller"; " Aora gracilis, Bate = Autonoe punctata, 

 Bruzelius"; " Microdeuteropus anomalus (Rathke). Gammarus anomalus, Nova Acta Leop. 

 1843, p. 63, pi. iv. fig. 7 ', = Autonoe anomala, Bruzelius, Skand. Amphip. Gammarid. p. 25, 

 pi. i. fig. 4 (but scarcely Microdeutopus anomalus, Bate & Westwood, Brit. Sessile-eyed 

 Crust, p. 289), = Microdeutopus gryllotalpa, Bate & Westwood, I. c. p. 289 (but not of 

 Costa)"; " Microdeuteropus versiculatus, Bate"; "Microdeuteropus Websteri, Bate," with the 

 remark, " I question whether there are sufficient grounds for separating the genus Aora 

 from Microdeuteropus " ; " Protomedeia (?) Whitei, Bate," with the suggestion that it is the 

 female of " Lilljeborg ia Shetlandica" ; "Protomedeia hirsutimana, Bate," which in 1886 

 Norman calls Ptilocheirus hirsutimanus, Bate ; " Hyperia oblivia, Kroyer, Gronlands 

 Amphipoder, p. 298, pi. iv. fig. 19 (but not H. oblivia, Bate & Westw. vol. ii. p. 16) " ; 

 " Bate and Westwood's ' H. oblivia,' which has not the propodos of the gnathopods at all 

 produced, cannot be Kroyer's species nor that here described ; " "I would propose for it the 

 name of H. gracilipes " ; " Metoecus medusarum, Kroyer, Gronlands Amphip. p. 288, pi. 

 iii. fig. 15 (not Hyperia medusarum, Bate, Cat. Amphip. Crust. Brit. Mus. p. 295)." The 

 specimen for which the name Hypieria gracilipes is here suggested more probably, however, 

 belongs either to Paratkemisto or (on the supposition of its not being full grown) to 

 Eutltemisto (see p. 1420). 

 The Postscript, besides remarks on other species, says of Bate and Westwood's Hyperia 

 tauriformis, "this is the Metoecus medusarum of Kroyer and of this Report. B. & W.'s 

 specimens were from Banff, forwarded by Mr. Edward, to whom I am also myself indebted 

 for specimens." The species is now named Hyperoche medusarum (Kr0yer). 

 On Syrrhoe hamalipes and Megamphopus cornutus, see pp. 788, 1108. 



