FISHES OF riAWAllAX ISLANDS. 



(If) 7 



Head 2(1.5 hninlri'illlis of Ini'jtli Id hasp of camlal; dcjith I'l: lU'iilli nf caiulal iicdiinolc .'1; Iciifxth 

 of tilanieiitoiis dorsal ray 1'.'!; lilaiuentons vontral ray 24; oiiicr ventral ray 12; pectoral 20; distance 

 between ventrals and anal 40; lenjith of anal base 20. Loiifiitndinal diameter of orliit 25 luindredt.li.s of 

 length of bead; interorliital width 2ii; length of snout :!0; distance from ti[> of snout to front of pre- 

 maxillaries II; length of maxillary 47. its ti|i noticeably behind jiosterior margin of orliit; length of 

 mandibular barbel i). 1>. rays 4 f 51; A. ;W; 1". IS <ir IS); V. (i. .Vliout b'.n transverse rows of scales on 

 sides, the nundx-r um-ertain owing to the irregularity of tlie series. 



Teeth in narrow bands on jaws, and in a small cluster on ln-ad of \(inier; gill-rakers very short, 

 3 1-11. 



Body entirely denndeil of scales and with light gray apiiearance, the niendiranes of scale-pouches 

 blackish; gill-mendiranes and pectorals, veiilrals, and c.iudal deep blue: lining of the gill-cavity and 

 abdominal wall lilack. 



In 8 specimens of .1. niicnilcjil.t from Alaska, the clorsal formula is as follows: 4-50, 4-5:i, 4-54, 

 4-54, 4-54, 4-54, -t-54, 4-55. In li specimens the anal rays are 40, 40, 41, 42, 4.S, 44. 



Antiiiiorit rliiiut Garnian, from the Panama region, is said to differ from mirrtiU'pis in the longer 

 dorsal fin (4 or 5-54 to 5(i) and the smaller scales (145). As is seen from the dorsal fornuda of mr<-i-o- 

 lepis given above, the latter does not differ from rhina in the size of the dorsal fin. It seems probable 

 that the 2 species are identical, especially as a careful comparison of Garman's description with typical 

 microlcpis fails to develop any differences. 



Laemoiiema rhodocliir, new siiecies. Fig. 255. 



Type, 1 10 mm. long, from station :isl(). off Hie south coast of <_)aliu. dc|ith 5:; to 21 1 fathoms; type, 

 No. 51623, i:. S. Xat. Mus. 



Length of head 25 lunidrnlths of total length without caudal; length of snout 7.5; interorliital 

 width 3.5; longest diameter of orbit 7; length of maxillary 12; length of barbel 6; depth of body 19; 

 least depth of caudal iiechmcle 2.5; length of ventrals 27; length of pectorals IS; first dorsal ray 12. D. 

 5-64; A. 50; V. 24; V. 2. Scales in about 130 cro.ss-series above lateral line, 10 or 12 scales between 

 lateral line ami ba.se of anterior dorsal rays. 



Snout ilepivsse<l, evenly rounded; distance between nostrils about i'(iual to distance from posterior 



I.:rmnnnuri rfintlnrlu'r (liliiert. now Kpocios. T.vpe. 



nostril lo eye: anterior nostril in a delicate tidie, the posterior portion of whic-h is the highest; inter- 

 orbitid regiipii narrow, flat or very gently concave; eye comparatively small, slightly shorter llian 

 snout; .snout not protruding beyond premaxillaries; ULandilile included; maxillary reaching :v vertical 

 from nuddle of eye, its length half that of bead; teelb linely villiform, in a wide band on premaxil- 

 laries, a narrower band on mandible, and ajiparently a single series on bead of vomer; jialatines tooth- 

 less; branch iostegals 7; gill-membranes united anti'riorly by a d<>licate membrane which is five from 

 isthmus; gill-rakei-s on outer arch 5-; 11, the longest ,'„ head; a moderate slit behind fourlh i;ill: 

 ps<>udobrancbi:e reduced, covered by mendirane. 



Distance from tip of snout to origin of dorsal 3.7 in total length willioul c:uidal, ibe front of dorsal 

 vertically above base of lower pectoral rays; base of first dorsal ecpial in leu.gtb to bah the ocular 



