26o Papers from the Marine Biological Laboratory at Tortiigas. 



projection beyond the mouth and indeed over the lower lip. These struc- 

 tures were found in every fish examined by the writer. 



The first and only description of our spotted sting ray from Brazilian 

 waters since Marcgrave (1648) is that by Miranda Ribeiro (1907), 259 years 

 later. His very clear diagnosis of the characters, both generic and specific, 

 agrees closely with Jordan and Evermann. These Brazilian rays, however, 

 are dark olive above with blue-white spots, which are round, more or less 

 equidistant from each other, and in size about equal to that of the eyes. 



Text-fig. 4. — Ventral view of A. narinari, after Jordan and Evermann, 1900, Florida. 



As Gunther's (1870) characterization of A. narinari from specimens in 

 the British Museum is the most authoritative since M tiller and Henle 

 (1841), so his description of the single specimen in the Museum Godefifroy 

 at Hamburg (19 10) is the most satisfactory since Jordan and Evermann's 

 (1896). His specimen from Samoa is, he says, not to be distinguished 

 from Atlantic specimens. However, he describes its nose as blunt, whereas 

 my figures and observations plainly show it to be sharp-pointed in all, 

 although of varying widths towards the base. The whole upper surface of the 

 body in his young specimen was covered with numerous bluish-white spots. 



In connection with notes on the embryos of certain rays (A. narinari 

 especially) taken at Cape Lookout in 191 2, Coles has (191 3) incidentally 

 published some elegant figures of our ray, which, through his kindness and 

 that of the American Museum of Natural History, are reproduced herein as 

 figures 9, 10, and 11, plate v. One text-figure of his paper will be omitted, 

 since it shows no points not given in figure 9, plate v. This figure is a lateral 



