. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 160 CALIFORNIA FISH AND GAME PUGHEADEDNESS IN THE LONGSPINE COMBFISH, ZANIOLEPIS LATIPINNIS, FROM MONTEREY BAY, CALIFORNIA On 5 November 1970, I captured a pugheaded longspine combfish, Zaniolepis latipinnis, in an otter trawl, at a depth of 61 m ( ft), km ( miles) west of Moss Landing, in Monterey Bay, California. Although pugheadedness is well documented in fishes (Dawson 1964, 1966; Rose and Harris 1968; Bortone 1971;
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 160 CALIFORNIA FISH AND GAME PUGHEADEDNESS IN THE LONGSPINE COMBFISH, ZANIOLEPIS LATIPINNIS, FROM MONTEREY BAY, CALIFORNIA On 5 November 1970, I captured a pugheaded longspine combfish, Zaniolepis latipinnis, in an otter trawl, at a depth of 61 m ( ft), km ( miles) west of Moss Landing, in Monterey Bay, California. Although pugheadedness is well documented in fishes (Dawson 1964, 1966; Rose and Harris 1968; Bortone 1971; Valentine and SamoUow 1973), this specimen represents the first record of pugheadedness in longspine combfish. The pugheaded specimen has a much shorter head and upper jaw than typical longspine combfish (Figure 1). Comparative skeletal anal- ysis of the pugheaded specimen and a non-pugheaded specimen of simi- lar size, cleared and stained according to the methods described by Taylor (1967), and Miller and Van Landingham (1969), revealed sev- eral deformities (Figure 2). Measurements, taken in accordance with the definitions of Hubbs and Lagler (1964), are presented in Table 1. The pugheaded specimen exhibits a shortened and thickened paras- phenoid with a calcified knob projecting dorsally, ventrally projecting maxillaries, orbits that are obliquely elongate, and dorsal arching of the frontal bones. All bones are present and except for the parasphenoid are relatively typical in size. No other abnormalities are obvious except for a bifurcation of the second dorsal spine (Figure 1). It appears that the pugheaded condition in this specimen could be a result of differential growth of the parasphenoid. A parasphenoid. ., iiiii!|iii|iiyii!iiii|iii!iiy T^.'\ iiViir ' ' ^ -"''â !'ll^l|!!lJ!fl^niliJ-!!l!!^l:'M!^ FIGURE 1. A non-pugheaded longspine combfish, Zaniolepis lafipinnis, (above), and pug- headed specimen (below). Photograph by G. E. Please note that these im
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