390 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



II. First braiifliial arch fi-oe Tracliin-hyiichiiHr 



A. Snout L'li)iii;ate, iiniiited. 



1. A scalelcss fossa on each sidi^ of the nape. Teeth in villifonn liauils in jaws. A row of arnuil 



scales at base of vertical iius anteriorly. Operculum very small. Barbel present. 



Ti;ACiiYi;iiv.Ncinis 



2. No scalelcss fossa. Teeth biserial in upjier jaw, with outer series enlarged; uniserial in lower jaw. 



No barbel. 

 a. No vomerine teeth. Bones of head firm, with narrow cavities. Mouth wiib;, lateral. Tail 



not very elongate MACitunoxis 



h. Vomerine teeth. Bones of head soft and cavernous. Tail very long and flagelliform. ^'ent 



very far forward. Anal fin with a distinct elevated portion .Stuindaciineuia 



B. Snout short and blunt; jaws even in front. Teeth in jaws in villiform bands. Bones of head soft 



and cavernous. 3i gills Batuygauus 



MACRURUS, Bloch. 



Macrourus, Bloch, Syst. Ichth., V, 1787, 152 (type, M. riipesiris, Bloch and Fabricius = J/, ierglax, Laci^pi'^do). 

 MacruruH, Giintuer, Cat. Fish. Brit. Mus., iv, 3!)(). — Jordan and Gilbkrt, Bull, xvi, U. S. Nat. Mus., 811. 

 Macrurnplus, Bleeker, Versl. Med. K. Akad. Wcteusch., Amsterdam, vili, 309 (type, M. nenatuii, Lowe). 



Suoiit more or less produced, and couical or triangular; mouth inferior, rather small, 

 infraorbital ridge more or less distinct; teeth in villiform ban^s in jaws, palate toothless. 

 Barbel present. Scales spinigerous, imbricated, lateral line slightly arched anteriorly. No 

 scalelcss fossa on side of nape. Dorsal sjiiue serrated. Other characters in common with 

 the other genera of Macrurince. 



In addition to the Atlantic forms the following have been noted elsewhere: 



Macrurns inresliyatoris, Alcock (Ann. and Mag. Nat. Hist., 1889 (Nov.), 391, 111. Zoiil. 

 Investigator, i, pi. iii, fig. 4) from Andaman Sea, 265-490 fathoms; Bay of Bengal, 193-405 

 fathoms; Laccadive Sea, 188-276 fathoms. This is the common species of the Indian Ocean, 

 occux)ying the same place which M. Bairdii fills in the Western Atlantic. 



M, semiquincunciatus, Alcock {loo. cit. 392), from the Bay of Bengal, near the Auda- 

 mans, in 130-250 fixthoms, and from the Laccadive Sea, 240-270 fathoms (Alcock, Ann. and 

 Mag. Nat. Hist., viii, 1891, 121). 



Macrurus Hosl;ynii, Alcock (Ann. and Mag. Nat. Ilist., 1890, ii, 214), from the Bay of 

 Bengal, off Madras, Investigator station 97, in 1,310 fathoms. This is the deepest locality 

 for Macrurus yet found in the Bay of Bengal. 



Macrurus Hextii, Alcock (Ann. and Mag.Nat, Hist., 1890, ii, 299), from the Arabian Sea, 

 Invcstij/alor station 104, 1,000 fathoms. 



Macrurus Wood-Masoni, Alcock {loe. cit., 301). From same locality as last and in the 

 Laccadive Sea, 738 fathoms. 



Macrurus Fetersomi, Alcock (Ann. and Mag. Nat. Hist., A^ii, 1891, 121, 111. Zool. 

 Investigator, i, in, fig. 5), from the Laccadive Sea, in 188 to 220 fathoms. 



Macrurus hrevirostris, Alcock (Ann. and Mag. Nat. Hist., 1889, 393), from the Anda- 

 man Sea, 7i miles east of North Cinque Island, in 490 fathoms. 



Macrurus macrolophus, Alcock [loc. cit.), from the Andaman Sea, southeast by south 

 of Ross Island, in 265 fathoms, and from the Laccadive Sea, 230 to 270 fathoms. 



Macrurus lophotcs, Alcock {loc. cit., 111. Zoiil. lurcstigator, i, i>\. Ill, fig. 2), from the 

 "Swatch" in the Bay of Bengal, 285 to 405 fathoms. 



Macrurus j'oJi/Jcpis, Alcock {loc. cit.), from the Bay of Bengal, 193 and 272 fathoms. 



Macrurus ruilis, Giiuther (Challenger Eeport, XXII, 131, pi. xxvil), from the I'acific, 

 north of the Kermadecs, in 520 to 630 fathoms. 



Macrurus nasutus, Giinther {loc. cit., pi. xxx. Fig. B), from off Japan, 345 to 505 fathom.s, 

 and from the Laccadive Sea, Inrcstigator station 107, in 738 fathoms (Alcock, Ann. and ]\Iag. 

 Nat. Hist., VIII, 1891, 121). 



Macrurus scrrulatus, Giinther (Ann. and Mag. Nat. Hist., 1878, ii, 20^, from northeast 

 of New Zealand, in 700 fathoms. 



Macrurus asper, Giinther (Challenger Keport, xxil, 137, pi. xxxvi, fig. A), from south 

 of Jai>an, 1,875 fathoms. 



