PLATE V 



CHLAMTDOSELACHUS, ITS BREATHING VALVE, TEETH, AND PELVIC FINS 



Fig. 15. Breathing'valve and some of the teeth of the 1350-mm. specimen in the American Museum. 



From a photograph, A. M. N. H. 



Fig. 16. Detailed drawing of the shark seen in outline in our Text-figure 1 (page 249). 



After Garman, 1885.2. 



Fig. 17. Pelvic fins, myxopterygia, and cloacal aperture of a 1474'mm. male fish. Note the shortness 



of the claspers or myxopterygia. 

 After Gunther, 1887. 



Fig. 18. Pelvic fins, abdominal pores, and cloacal aperture of a 1220'mm. female fish. 



After Carman, 1885.2. 



Fig. 19. Cloacal aperture and abdominal pores of American Museum specimen No. I, a 1350'mm. 

 female fish. The abdominal pores are here nipple-bke structures. That on the right 

 is perforate, that on the left has no opening. 

 From a photograph, A. M. N. H- 



