234 



MR C. TATE REGAN ON THE 



Myctophid^. 



10. Myctophum antarcticum, Giinth. 

 Specimens were taken at : — 



Station 309, 63° 51' S., 41° 50' W., 2300 fathoms; temperature 31 05° F. ; 



trawl; 16th March 1903. 

 Station 414, 71° 50' S., 23° 30' W., 0-1000 fathoms; surface temperature 



29-1° F. ; vertical net ; 15th March 1904. 

 Station 422, 68° 32' S., 12° 49' W., 0-800 fathoms; surface temperature 



327° F. ; temperature at 800 fathoms 32-4°; vertical net ; 23rd March 1904. 



1 1. Lampanyctus hrauey-i, Lonnberg. 



One specimen was taken at Station 420, lat. 69° 33' S., 15° 19' W., 2620 fathoms, 

 by the trawl, on 21st March 1904 ; temperature 31'5° F. The species was previously 

 known only from the type. 



Alepidosaurid^. 



Eugnathosaurus, gen. nov. 



Skull very elongate and strongly compressed, with the upper surface somewhat 

 convex, bearing a fairly prominent median ridge. Snout and lower jaw much produced, 

 each ending in a fleshy appendage ; lower jaw projecting beyond upper ; suspensorium 

 directed obliquely forward. Teeth pointed, uniserial ; prsemaxillary teeth minute ; 

 mandibulary teeth sub-conical, erect or somewhat retrorse, strongest in the middle of 

 the length of the jaw, more spaced posteriorly ; palatine teeth strong, compressed, 

 curved somewhat forward. 



12. Eugnathosaurus vorax, sp. n. 



The type of this remarkable new genus and species is a head, measuring 150 mm. 

 in length from tip of snout to end of operculum, taken in the trawl on 18th March 1904, 



Fig. 1. — Eugnathosaurus vorax. 



at Station 417, in lat. 71° 22' S., long. 16° 34' W., off" Coats Land, at a depth of 1410 

 fathoms, by the trawl; temp. 3 1*9° F. That it is related to Alepidosaunus is evident, 



