DISCUSSION OP SPECIES AND THEIR DISTRIBUTION. 389 



Ceplialic appeudaj;e readies nearly to l)aso of first dorsal, its length (10 niilliineters) 

 U in total. 



Distance of dorsal from snout (17 millimeters) 2J in total; that of anal the same. 



The dorsal and anal fins reeeived in a^ groove formed by the scales along their bases. 



Anterior portion of second dorsal and second anal less eh^vated than in B. Mdvcldhindii. 

 The differentiations between the developed and nndeveloped rays of the anal are so slight 

 that the limits of the so-called anterior and posterior sections of the fin can not be 

 determined. 



Length of the longest anal ray (22 millimeters) about 2 in body lengtli. 



Eadial formula: I). 1 + ir>-lf.; A. l.VKi + x (7 or 8) + 21-22. 



Specimens were obtained by the lilnl-e at the following stations: xius, off Granada, 

 90 fathoms; cxni, oft' ISTeris, 30."» fathoms; OLXXXV, lat. 2.")^ 33' N., h)n. 81° i<l' W., 101 

 fathoms. 



Family MACRURID,^. 



Macnirida; Bonaparte, Niiovi Annali Sci. Nat. (857), 1838, 13i; Catologo Metodico, 1876, 41.— Gunther, 

 Cat. Fish. Brit. Mus., iv, 390.— Gill, Ait. Fain. Fish., 1872, 3 (No. 16); .Tohusou's Cyclopietlia, ii, 1614; 

 Proc. Acad. Nat. Sci. I'hila., 1864, 174.— Jordan' and Gilbert, Bull, xvi, U. S. Nat. Mus., 811. 



LepUlolepridw, Swainson, Hist, Nat. Fish., 1839, ii, 179. 



Lipidosomatidw, Adams, Man. Nat. Ilist., 1864, 101. 



Gadoidea with body terminating in a tapering, long, and comjiressed tail, and covered 

 by keeled or ornamented scales. Teeth villiform or cardiform, in band.s in jaws. Premax- 

 illary protractile. First dorsal near the head, distinct and short; second of feeble rays, 

 similar to the anal, the two encompassing the tail. No differentiated caudal. Ventrals 

 thoracic or jugular and of several rays. I'seudobranchiai none. Air-bladder present. 



SYSTEMATIC KEY T( » THE SKIiFAMILIES AND GENERA. 



(After Glintlier, modified and extended.) 



I. A fold of membrane of gill-cavity across torminal portion of first bra-nchi.il .arch. Biirbel present. 4 

 gills. No psendobr.anchia' MaerurimK 



A. Teeth in villiform bands above .and below, thatoi the lower jaw always broadest near the symphysis, 



and sometimes tapering into a series ou the side of the jaw. 



1. Scales distinctly imbricate, without enlarged dorsal scales. 



a. Scales spinigerous. 



Mouth inferior ; infr.aorbital ridge more or less distinct. Dorsal spine serrated . . .Macruri'.s 

 Mouth entirely at the lower side of the head, a longitudinal ridge dividing the infraorbital 

 region into a vertical and subhorizontal portion. Dorsal spine smooth. 



ClELORHYNClirS 



Mouth wide and lateral. 



Dorsal spine finely barbed Coi£VPHJ=noides 



Dorsal spine smooth 1 lY.ME.NocEPiiALtJS (=Mystaconurus) 



J. Scales smooth EioNUUlis 



2. Scales indistinct, the whole skin covered with villosities Tkaciion'URU.s 



3. A series of enlarged scales along the liaso of the dorsal and anal iiiis Cetonurus 



B. Intermasillary heterodont, with an outer series of strong, widely-.set teeth, and an inner villiform 



baud; mandibulary teeth uniserial. 



1. Dorsal spine serrated Ciiai.inura 



2. Dorsal spine smootli Ol-TONURls 



C. Internuisillary teeth uni- or l)isi-rial; mandibulary teeth uuiserial. 



1. Dorsal origin over origin of ])eetoral. 



a. Ventrals short and weak, pectorals jilaced very high, opposite uiipcr angle of gill-cleft; lat- 

 eralline originating at uiiiier angliMif gill-cleft. Muciferous cavities wide. Dorsal 

 spine smooth. Scales small, bristly MAi.AOocKPn.vLrs 



2. First dorsal behind origin of pectorals. Muciferous cavities small. 



a. Dorsals separated by a considerable space. Dorsal and anal similar in height and appear- 

 ance NEMAToxunrs 



h. Dorsals sulicontnuous. Anal miu-h higher tlian si^cond dorsal Mosei.kya 



D. Intermaxillary teeth villiform; mandibulary teeth uniserial. 



1. Dorsal, ventral and pectoral origins nearly in the s.imo vertical. Pectorals very long, spatu- 

 j.^^ij Ahyssicola 



