588 THE VOYAGE OF H.M.S. CHALLENGER, 



Earn. 2. Lanceolidje. 



Gen. 1. Lanceola, Say, 1818, with six species, omitting Bovallius' owu Lanceola curticeps, 1885, 

 and clianying " Lanceola Claiisii," Bovallius, 1885, into " Lanceola Clausi." 



Fam. 3. Vibilid^, Claus, 1872. 



Gen. 1. Vihilia, M.-Edw., 1830, with fifteen species, definitions being given of Vibilia 

 macropis, n. s., Vihilia gihhosa, n. s., Vihilia rohusla, n. s., " Vihilia Kroeyeri," n. s., 

 Vihilia loiigipes, n. s., Vibilia viatrix, n. s., Vihilia gracilis, n. s., Vihilia gracilenta, n. s., 

 Vihilia armata, n. s., Vihilia pyi-ipes, n. s. 



Fam. 4. Cyllopodid.!;. 



Gen. 1. Cijllojms, Dana, 1852, with six species, of which the first is Cyllopiis magellanicus, 

 Dana, 1852, the second " Cyllopus Batei," a new name for the Cyllopus magellanicus, so 

 called by Spence-Bate. Cyllopus armatus, n. s., and Cyllopus levis, n. s., are described. 

 The genus Cyllopus is followed by " 1 Gen. 2. Cyllias, n. g. Typus : Hyperia tricuspidata, 

 Streets," thus defined : — 



" Head large, irregularly quadrangular from a lateral view. Flagellum of first pair of antennae 

 ovate, acute at the apex. Carpus of first pair of pereiopoda dilated, twice as broad as meta- 

 carpus. Carpus of second pair narrow, not produced into a process ; metacarpus slightly 

 produced into a pointed process on either side of the dactylus. Dactylus of seventh pair?" 

 The single species is " C. trictispidatus, H. Streets, 1877." 



Fam. 5. Paraphrommidjj. 



Gen. 1. ParapliTonima, Claus, 1879, with five species, of which the fourth, Paraphronima 

 pectinata, n. s., is described ; the fifth is given as " ? P. Gaherti, H. Milne-Edwards, 

 1840," the reference being to Milne-Edwards' " Daira Gahcrtii." No mention is here made 

 of "Paraphronima Edwardsii," Bovallius, 1885. 



"Fam. 6. TnAUMATOPSiDiE, C. BovaUius, 1886." 



"Gen. 1. Thaumafops, K. v. Willemoiis-Suhm, 1874," -ivith four species. 



Fam. 7. Mimonectid^, C. Bovallius, 1885. 



Gen. 1. Mimonectes, C. Bovallius, 1885, with three species. 



Fam. 8. HrPERiiDyE, Dana, 1852. 



Gen. 1 Hyperia, Latreille, 1825, with ten species, "1. H. medusarum, 0. F. Miiller, 1776;" 

 "2. H. Latreillei, B. Milne-Edwards;" "3. H. Gaudichaudi, H. Milne-Edwards, 1840;" 

 "4. H. Fahrei, H. Milne-Edwards, 1840;" "5. H. fera, Dana, 1852;" "6. H. ruhesceiis, 

 Dana, 1852;" "7. H. galha, Montagu, 1813;" "8. H. agilis, Dana, 1852;" [9] " H. 

 minuta, Edward, 1868;" "10. ? H. mediterranca, A. Costa, 1865." 



Gen. 2. lulopis, n. g., is thus defined : — 



"Body hirsute. Head very large, deeper than long. Antennre as in Hyperia. Pereional 

 segments raised, forming rolls. The first two pairs of pereiopoda subcheliform, the spoon- 

 like carpal jirocesses compressed, narrow. Carpi of third and fourth pairs not dilated. 

 Three last pairs subequal, metacarpi short but broad. Epimerals distinct. Uropoda short 

 and broad. Telson large." To this genus are assigned two species, " lulopis Loveni," n. s., 

 and lulopis mirahilis, n. s. 



Gen. 3. Hyperoche, n. g., is thus defined : — 



" Body smooth. Head large, deeper than long. Antennae as in Hyperia. Pereional segments 

 even. First two pairs of pereiopoda cheliform, the carpal processes long, knife-like. Carpi 

 of third and fourth pairs not dilated. Last three pairs subequal, metacarpi not elongated, 

 narrow. Epimerals distinct. Uropoda tolerably short and broad. Telson large." To 

 this genus five species are assigned as follows: — " 1. //. Kroeyeri, C. Bovallius, 1885;" 

 "2. H. abyssorum, A. Boeck, 1870;" "3. H. LiLetkeni, n. sp.;" "4. H. Alartinezi, Fritz 

 Muller, 1864;" "5. H. prehensilis, Spence Bate and Westwood, 1868." A definition is 

 given of Hyperoche Luetkeni, the new species. 



