FISHERY BULLETIN: VOL. 80, NO. 1 



Figure 5.—Citharickthys cornutus: A. Transforming larva, 14.2 mm; B. Nearly transformed larva, 17.4 mm; C. Adult, 37.2 mm. 



Scale = 1 mm. 



Surface temperature and salinity were 20.4°- 

 27.3°C and 35.5-36.8"/... Almost no larvae were 

 caught east of the average Gulf Stream axis (Fig. 

 1). The reported northern limit for adults is Flor- 

 ida (with one exception— an adult male taken off 

 Cape Hatteras (Stewart 5 )). Larval occurrences 

 shown in Figure 1 are evidence of the effective- 



5 D. J. Stewart, Graduate Student, Laboratory of Limnology, 

 University of Wisconsin, Madison, WI 53706, pers. commun. 

 June 1978. 



ness of Gulf Stream transport. The eastward 

 shift of positive tows just north of lat. 32°N cor- 

 responds to the location of a semipermanent 

 meander of the Gulf Stream induced by the 

 Charleston Rise (at about lat. 32°N, long. 79°W 

 (Pietrafesa et al. 1978)). 



In the eastern Gulf of Mexico, larvae smaller 

 than 4 mm NL were common in January, Febru- 

 ary, May, June, July, August, and November, 

 indicating year-round spawning in that area 

 (Dowd 1978). 



50 



