214 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



A. Jepturus is distinguished from A. lupus by (1) its uniform brown 

 color, (2) its scanty squamation, (3) its slender tail, (4) its greater num- 

 ber of dorsal and anal rays. It resembles A. Inims in many respects, 

 but differs from it as widely as lupus does from latifrons. 



In the measurement tables which follow the hundredths of length are 

 calculated from the total length without the caudal. 



A key to the species of Anarrliiclias is given. In this no reference is 

 made to the denticulatus of Kroyer, because the slight descriptions 

 which we have of this species do not serve to distinguish it from 

 latifrons. The species known on the American coast as A. latifrons is 

 evidently the latifrons of Steenstrup* & Collett,t and I cannot see that 

 it diflers from the denticxilatus of Giinthert or of Ivroyer.§ 



TahU of Measurements. 

 Species : Anarrhichag lepturus. 



Current number of specimei 

 Locality 



St. Michael's, 

 Alaska. 



Milli- 

 metres 



Extreme length ; 



Length to orijriu of middle caudal rays 

 Body : 



rht. 



ase of pectorals , 

 it of tail 



Il.'iuiit ; 



Least h 

 Head : 



Greatest length 



Distance from nostril to anterior margin of orbit 



Greatest width 



AVidth iif interorbital .trea 



Lni^t li of fiiiout 



t;n-afcHt lici-ht 



Liii'itli of u])per jaw 



Lnii^tli of iiiaiidible 



Distaiii (• from snout to orbit 



Hiamct.rof orbit 



DolS:ll : 



nistance from snout 



Greatest height 



Lt ugth of longest ray 



Anal : 



Distance from snout 



Lengt h of first ray 



Length of longest" ray 



Caudal : 



Length of middle rays 



Pectoral : 



Distance from snout 



Length 



Dorsal 



Anal . . . 

 (Caudal . 

 Pectoral 



lOOths 



of 

 length. 



St. Michael's, 

 Ahiska. 



MUli- 

 metres, 



lOOths 



of 

 length. 



17 

 4 



23 

 li 



1 



u 



14i 



23i 

 15 



*Noo;et om SUegten Soiilv &c., 187(5, p. 43 (Vidcusk. Mcdd. fra den Datiirliistonsko 

 Foreiung i Kjobenbavn, 1876, p. 201, tab. iii.figs. 3, 3', & 3"). 

 rClira. Videusk.-Solsk. Forhandl. 1879, No. 1, p. 46, pi. ii, lig. 2. 

 tCat. Fish. Brit. Mus. iii, l.-<61, p. 211. 

 $Gairaard, Voy. eu Scaud. etc., Zool., Poiss., pi. xii, fig. 1 (uo description i 



