REPORT ON THE AMPHIPODA. 539 



be distinguished from it by the firet guathopods " ungve terminali spinis 4 pectinatim 

 ornato," the second gnathopods, " ungve terminali spinis 2 armato," the " epimora 4ti paris 

 anteoedentibus juuctis circiter reqvalia, obliqvo triangularia, postice obtuse producta, margine 

 inferiore parum arcuato," and by the " pedes ultimi paris articulo basali subelliptico deorsum 

 rotundato-producto, margine posteriore Isevi ; articulo 3tio qvam in A. nordlandica minus 

 dilatato ; " for the relationship of this species to Stegocephalns, see Note on Aurivillius, 

 1885 ; 115. Amphilodius inermis, said to be very like Amphilodius manudens, Sp. Bate, but 

 having the hand of the first gnathopods " angulo anteriore non in spinam producto," and 

 distinguished from Amphilochus odoiiivnijx, Boeck, by the second gnathopods, in which tlie 

 hand is much larger than in the first pair, " aiiicem versus dilatata, acie arcuata calce carpi 

 angusta et elongata ad aciem man us porrecta," and by the very elongate telson ; " 116. 

 Stegoj/Iax loiujirostiis, new species of a new genus, of wliich Sars says " this curious little 

 Amphipod obviously belongs to the Family Amphilochidaj, but is so different from the 

 forms hitherto known that it must be made the type of a new genus. The chief characters 

 are the enormous development of the third and fourth pairs of side-plates, and the 

 rudimentary structure of the two first pairs, also the narrow linear form of the basal-joint 

 of the third and fourth perteopods, by which it recalls the genus Stegocephalns." It is 

 very near to, if not synonymous with, the earlier genus Peltocoxa, Catta, 1875, and the 

 genus Cyproidia, Has well, 1880 ; see Notes on Catta and Haswell under those dates ; 117. 

 Stenotho'e tenella, distinguished from the two other northern species of StenotUoe by the less 

 strongly built bodj', the thin antennee and perieopods and light- coloured eyes; 118. Stenotho'e 

 hrevicornis, like Stenotho'e vionoculoides in the very short antennae, distinct in the much 

 less developed side plates ; 119. MetojKi rulrovMata, recognised by Sars as standing very 

 near to Metopa alderi, Sp. Bate, but distinguished from it by its far smaller size, the 

 antennae of uniform length, the hand of the second gnathopods, thus described, "pedes 

 2di paris robusti, manu magna, oblonga, acie brevi, fere transversa, subtiliter serrulata, 

 inferne processu dentiformi sat prominente apici quani basi multo propiore definita;" 

 and the colouring, " corpus peUucidum fasciis transversis angustis ex parte interruptis 

 colore intense purpureo oruatum;" 120. Meiupa leptocarpa, "pedes primi paris forma 

 insolita, tenuissimi, fere filiformes, carpo valde elongato et angusto, manu apicem versus 

 leviter dilatata, acie transversa et inferne distinctissime definita;" 122. Metopa horealis, 

 synonymous with Metopa hruzelii, Boeck, non Goes, being distinguished, Sars says, from 

 Metopa hruzelii, Goes, by its more considerable size, shorter antenna?, first gnathopods 

 "articulo 3tio inferne parum producto, manu medio leviter dilatata carpi longitudinem 

 sequante," and by the second gnathopods in which the palm is more coarsely serrate and 

 the lower angle more prominent ; 1 23. Metopa calcarata, distinguished by the relatively 

 large oval eyes, the much dilated and downward produced third joint of the hinder 

 peraeopods and by the second gnathopods in the male, which are " permagni, manu valde 

 elongata, subarcuata, margine inferiore dense ciliato et antice eminentiam serratam 

 praebente, ungve terminali fortissimo margine altero ciliato;" 124. Metopa gregaria, the 

 hand of the second gnathopod in the male " valde prajlongata, subarcuata, margine inferiore 

 toto dense ciliato in medio dentibus 2 et prope apicem eminentia subtiliter serrata armato, 

 acie non definita, ungve terminali validLssimo manu longiore in margine interno ciliato ; " 

 128. BruzeJia fuhemilata, near Bruzdia serrata, but distinguished from it, Sars says, by 

 want of any proper dorsal carina, though all the segments are raised above into protuber- 

 ances, also by the blunt lateral carina, and by the lower hinder angles of the third pleon- 

 segment, which are "acuminati et valde sursum curvati margine inferiore serrate;" 129. 

 (Edicerus microps, near CEdieerus lynceus, M. Sars, but scarcely half the size, with a 

 shorter, less inflated rostrum, smaller eyes, second joint of upper antennae linear, hands of 

 the first and second gnathopods more elongate, third uropods very long; 131. Ilalimedon 



