128 



DISCOVERY REPORTS 



body, more oblique profile of the snout, more rugose head, higher dorsal spines, and 

 by the coloration. 



McCulloch (1926, Rec. Austral. Mus., xv, p. 37) has discussed the status of the genus 

 Congiopodus, Perry, and has given good reasons for using this name instead of Agriopus. 



PSYCHROLUTIDAE 



Neophrynichthys marmoratus, Gill. 



Neophrynichthys latus (non Hutton), Gunther, 1881, Proc. Zool. Soc, p. 20, pi. i; Lonnberg, 



1907, Hamb. Magalh. Sammelr., Fische, p. 11. 

 Neophrynichthys marmoratus, Gill, 1889, Proc. U.S. Nat. Mus., xi (1888), p. 327. 

 Besnardia gyrinops, Lahille, 1913, Anal. Mus. Nac. B. Aires, xxiv, p. 3, pi. i, text-fig. 1. 

 Neophrynichthys marmoratus, Regan, 1913, Trans. R. Soc. Edinb., xlix, p. 241. 

 St. WS 93. 9. iv. 27. 7 miles S 8o° W of Beaver Island, West Falkland Islands. Commercial 

 otter trawl, 133-130 m.: 1 specimen, no mm. 



St. WS 97. 18. iv. 27. 49 00' 30" S, 61° 58' W. Commercial otter trawl, 146-145 m.: 1 specimen, 

 165 mm. 



St. WS 583. 2. v. 31. 53°39'S, 70° 54' 30" W. Small beam trawl, 14-78 m.: 1 specimen, 



100 mm. 



As Regan has pointed out, this species may be distinguished by the greater develop- 

 ment of the dermal appendages on the head and anterior part of the body, which are 

 much longer and set further apart than in N. latus from New Zealand. In addition, 



Fig. 71. Neophrynichthys marmoratus. x -J-. 



the interorbital region is much narrower, the caudal fin more rounded, and the coloration 

 different. The dorsal rays number IX-X 15-16, the anal rays 11 or 12. 



Hab. Coasts of south-eastern South America, from the Rio Plata to the Straits of 

 Magellan. 



There are 2 large specimens (320, 390 mm.) in the British Museum from the Straits 

 of Magellan — the types of Regan's N. marmoratus — and the ' Scotia' obtained a smaller 

 example (160 mm.) from the Burdwood Bank in 56 fathoms. The type of Besnardia 

 gyrinops is 337mm. in total length: this fish is said to be known locally as "Gran 

 sapo de Mar". 



The form of the pelvic fins in this species is of some interest. These appear to arise 

 from a pocket-like fold of the skin, and in preserved specimens the fins may be com- 

 pletely everted, presenting a normal appearance, or may be withdrawn so that only the 

 tips project through the opening of the pocket. An exactly similar state of affairs is 

 found in the Pediculate fish Chaunax pictus. 



