1. Bering Sea. Anadyr Gulf. St. 16, 63° 16' N, 173° 16' W, 78 meters, rocky 

 gravel. Bottom temp. 1.3", beam trawl, July 30, 1933. One ex. K. Panin. 



2. Bering Sea. Anadyr Gulf. St. 23, 63" 50' N, 173" 00' W, 63 meters, gravel, 

 bottom temp. -0.8°, dredge. August 2, 1933, one juvenile. K. Panin. 



In addition there are examples m the collection of the zoological institute of 

 the Akad. Naiik SSSR from the Okhotsk Sea (No. 18057 and 20338). A comparison of 

 this material with Leptoclinus maculatus (Fries) from the north Atlantic Ocean (No. 

 3349, 11889, 11890, 12795 and 20385 Zool. Inst. Aka. Nauk, SSSR) indicates that 

 they differ in the number of rays m the unpaired fins: 



Dorsal Anal 



Bermg and Okhotsk Sea (5 ex) LXI-LXIV I, 37-39 



North Atlantic Ocean (5 ex) LVII-LXI I, (II) 34-37 



N. M. Knipovichi./ records the following counts from Barents Sea examples: 

 D LVIII-LXI, A. I, 34-37 (after Tilemann D LVIII-LXI, A 32-38, i.e. I, 31-37). 

 In addition, not a single Pacific Ocean example had large canine teeth on the 

 jaws, whereas L. maculatus (Fries) (no. 11889 and 20385 ZIN Akad Nauk SSSR) 

 usually possess them. 



These differences (and measurements) allow one to consider the Pacific Ocean 

 representatives as a separate geographical subspecies. However, A. Y. Taranetz 

 kindly informed me that the species described as new by P. Y. Schmidt (1904, p. 182) 

 as Plectobranchus diaphanocarus from East Sakahlin was erroneously placed as to 

 genus but is very close to Leptoclinus maculatus (Fries) . 



Comparison of our examples with Plectobranchus diaphanocarus Schmidt (Type no. 

 12959 and 12960 ZIN Ak. Nauk SSSR) showed that: 



1. Plectobranchus diaphanocarus Schmidt is far removed from the genus Plecto - 

 branchus Gilbert (evides) in which the "gill slit is not ■ continued far forward, the 

 membranes broadly united, wholly free from the isthmus" (Jordan & Evermann, I.e., 

 p. 2431-32.). 



2 . Plectobranchus diaphanocarus Schmidt does not differ from Leptoclinus 

 maculatus from the Okhotsk and Bering Seas and possesses, as other related forms 

 of the genus Lumpenus , anterior extendirg gill slits. 



3. The aforementioned exp-mples must be called Leptoclinus maculatus 

 diaphanocarus (Schmidt) which differ from L. maculatus (Fries) of the North 

 Atlantic Ocean in a larger number of rays in the dorsal and anal fins, a longer 

 pectoral and a less elongated lower jaw; also by the absence of canine teebh in 

 the front of the upper and lower jaws . 



_ 



N. M. Knipovich. Identification of fish from Barents, White and Kara Seas. 

 Trudy Inst. North. Studies, 1926, vol. 27, p. 99. 



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