156 True Fishes 



SWELLFISHES, BOXFISH, PORCUPINE FISH 



I. Entire body, including back, covered with prickles or 

 spines 

 Page 157, figs. A-F 



la. Small prickles on body making skin rough to touch 

 Page 157, figs. A, B 



1. Front and rear portion of tail has a broad dusky 

 band 



Page 157, fig. A 



See Southern Swellfish, p. 410. 



2. No bands on tail 

 Page 157, fig. B 



See Northern Swellfish, p. 410. 



lb. Large spines on body 

 Page 157, figs. C-F 



1. Spines thick, not movable 

 Page 157, figs. C, D 



See Spiny Boxfish, p. 411. 



2. Spines slender, movable 

 Page 157, figs. E, F 



See Porcupine Fish, p. 412. 



II. Back smooth, no prickles or spines 

 Page 157, fig. G 



See Smooth Swellfish, p. 409. 



