1906. 



NATURAL SCIENCES OF PHILADELPHIA. 



85 



bright silvery, and sides and lower regions of the brightest silvery. 

 Fins pale and more or less transparent. Iris silvery. 



Reaches a length of 3 inches. Found throughout the Keys, the 

 above notes from examples from Hailer's Rock. Very large schools 

 were seen both in this locality and about the Marquesas. They swim 

 in large shoals associated with the other small fishes, haunting the shal- 

 lower as well as the deeper places along shore. They were unusually 

 numerous about the broken rocky shores, where free ingress and egress 

 could be had with the outer waters. Here the schools were seen more 

 or less quiescent and with their heads all directed one way, so that 

 upon any disturbance the whole mass would move more or less as if 

 by one impulse. They appear mostly transparent in the water. I 

 found them occasionally in the siu"f , where they were probably more 

 abundant than I was able to determine. When taken from the water 

 they soon die. I never observed them in any tide-pools which were 

 cut off from the sea during low tide. 

 21. Anchovia choerostoma cayorum subsp. nov. Fig. 4. 



Head 3f ; depth 5; D. in, 9; A. iii, 25; P. i, 12; V. i, 6; scales 36 

 (squamation injured) in a lateral series to base of caudal with several 





.t^^^^^xx,. 



Fig. 4. Anchovia choerostoma cayorum Fowler. 



more on latter ; about 8 series of transverse scales from above origin of 

 anal; width of head 2| in its length; depth of head H; snout 5; eye 

 3^; interorbital space 3f ; maxillary 1^; length of depressed dorsal If; 

 caudal 1^; pectoral If; ventral 2f ; base of anal 3^ in head and trunk. 

 Body strongly compressed, elongate in form, rather slender, and 

 lower profile a little more convex than upper, edges not trenchant 

 though rounded, and greatest depth about origin of dorsal. Caudal 



