238 



Abstract — A new species of the cottid 

 genus Triglops Reinhardt is described 

 on the basis of 21 specimens collected 

 in Aniva Bay, southern Sakhalin 

 Island, Russia, and off Kitami, on the 

 northern coast of Hokkaido, Japan, at 

 depths of 73-117 m. Of the ten spe- 

 cies of Triglops now recognized, the 

 new species, Triglops dorothy, is most 

 similar to T. pingeli Reinhardt, well 

 known from the North Atlantic and 

 North Pacific oceans and through- 

 out coastal waters of the Arctic. The 

 new species differs from T. pingeli in 

 a combination of morphometric and 

 meristic characters that includes 

 most importantly the number of dorso- 

 lateral scales; the number of oblique, 

 scaled dermal folds below the lateral 

 line; and the number of gill rakers. 



Triglops dorothy, a new species of 



sculpin (Teleostei: Scorpaeniformes: Cottidae) 



from the southern Sea of Okhotsk 



Theodore W. Pietsch 



School of Aquatic and Fishery Sciences 



College of Ocean and Fishery Sciences 



University of Washington 



Campus Box 355020 



Seattle, Washington 98f95-5020 



E-mail address: twp'g'u. Washington edu 



James W. Orr 



Resource Assessment and Conservation Engineering Division 

 Alaska Fisheries Science Center 

 National Marine Fisheries Service, NOAA 

 7600 Sand Point Way NE 

 Seattle, Washington 98115-6349 



Manuscript submitted 28 March 2005 

 to the Scientific Editor. 



Manuscript approved for publication 

 16 August by the Scientific Editor. 



Fish. Bull. 104:238-246 (2006). 



Sculpins of the teleost family Cottidae 

 are nearly ubiquitous in cold-water 

 benthic habitats of the Northern Hemi- 

 sphere, comprising nearly 200 species 

 in the North Pacific alone (Yabe and 

 Nakabo, 1984; Sheiko and Federov, 

 2000; Mecklenburg et al., 2002; Love 

 et al., 2005), where they are found 

 in almost every benthic habitat from 

 the intertidal to the upper continental 

 slope. Many species are preyed upon 

 by larger fishes and marine mammals 

 (Browne et al., 2002), and are them- 

 selves predators primarily of smaller 

 fishes and crustaceans (e.g., Tokranov, 

 1998; Hoff, 2000; Tokranov and Orlov, 

 2001). Although many members of 

 the family are also commonly found 

 in bycatch of commercial fisheries 

 (Stevenson, 2004; Orlov, 2005), the 

 systematics and life histories of most 

 species are poorly known (Nelson, 

 1994; Hoff, 2000; Hoff, 2006) and new 

 species continue to be described (e.g., 

 Yabe, 1995; Yabe and Maruyama, 

 2001; Yabe et al., 2001). A more com- 

 plete understanding of the diversity of 

 the family is necessary to understand 

 the role of cottids in the dynamics of 

 North Pacific ecosystems. 



The cottid genus Triglops Rein- 

 hardt (1830), including Prionistius 

 Bean (1884), Elanura Gilbert (1896), 

 and Sternias Jordan and Evermann 

 (1898) as junior synonyms, contains 



19 nominal species and subspecies, of 

 which nine are currently recognized 

 as valid (Pietsch, 1993). Members 

 of the genus are characterized most 

 strikingly by having a small head, a 

 narrow, elongate body and a slender 

 caudal peduncle, a long anal fin con- 

 taining 18-32 rays, pelvic fins with 

 a single spine and three soft rays, 

 branchiostegal membranes united 

 on the ventral midline but lying free 

 from the isthmus, and scales below 

 the lateral line modified to form dis- 

 crete rows of tiny serrated plates that 

 lie in close-set, oblique dermal folds. 

 The species are generally distributed 

 in rather deep water (primarily be- 

 tween 18 and 600 m, but specimens 

 have been taken more or less on the 

 surface and as deep as 930 m; An- 

 driashev, 1949; Hart, 1973; Fedorov. 

 1986) throughout cold-water, conti- 

 nental shelf or slope regions of the 

 North Pacific, North Atlantic, and 

 Arctic oceans. All appear to feed pri- 

 marily on small planktonic and ben- 

 thic invertebrates (Andriashev, 1949; 

 Fedorov, 1986). Spawning takes place 

 from late summer to winter; the eggs 

 are demersal (Andriashev, 1949; Mu- 

 sick and Able, 1969; Fedorov, 1986). 

 Triglops was first proposed by Jo- 

 hannes Reinhardt (1830), based on 

 a single specimen from West Green- 

 land, but the type species T pingeli 



