. The Canadian field-naturalist. 1992 Campbell: Status of the Y-Prickleback 21. Figure 1. Photograph of a freshly caught specimen (53 mm) of the Y-Prickleback, Allolumpenus hypochromus, (BCPM 984-421) taken in Tasu Sound, Fairfax Inlet, Queen Charlotte Islands 16 September 1984. Photograph courtesy A. E. Peden, British Columbia Provincial Museum. (Note anterior spines of the dorsal fin are depressed and should be raised like the rest of the fin). McAllister et al. (1985) suggested that the species should be considered rare (vulnerable) in Canada and protected as such. However, Peden (personal
. The Canadian field-naturalist. 1992 Campbell: Status of the Y-Prickleback 21. Figure 1. Photograph of a freshly caught specimen (53 mm) of the Y-Prickleback, Allolumpenus hypochromus, (BCPM 984-421) taken in Tasu Sound, Fairfax Inlet, Queen Charlotte Islands 16 September 1984. Photograph courtesy A. E. Peden, British Columbia Provincial Museum. (Note anterior spines of the dorsal fin are depressed and should be raised like the rest of the fin). McAllister et al. (1985) suggested that the species should be considered rare (vulnerable) in Canada and protected as such. However, Peden (personal commu- nication) feels that the species is poorly known because of its small size and its habitat. Lea and Eshmeyer (personal communications) are of a similar opinion and suspect that the species range does extend south to California, but has simply gone unno- ticed. This may be, but given the distinctive markings of this species it is doubtful it would be missed, if present, in collections, or misidentified with other members of the family. General collection survey activity has been fairly vigorous along the Pacific coast (, Peden and Gruchy 1971; Barraclough and Peden 1976), with several new species and range expansions of others being documented. In addition to the few bon a fide Canadian records (Table 1), Peden (personal communication) observed several individuals on a trip to the Queen Charlotte Islands with the submersible "Pisces IV". Barraclough and Fulton (1968) also reported the presence of larval Allolumpenus hypochromus indi- viduals in surface trawl tows in Saanich Inlet during June and July 1966, indicating the presence of a viable population in the area. Habitat The recorded specimens (Table 1) were captured at depths varying from about 30 to 100 m over rocky or sandy substrates. Peden (personal communication) observed several specimens from the "Pisces IV" on a very steep slope of detritus and broken shell on the side of a rock wall. Th
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