. The fishes of North and Middle America [microform] : a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Fishes; Fishes; Poissons; Poissons. «*i^.!ira Jordan mid Evermami.âFishes of North America. 2753 over uranchial archen; 16 to 20 large spinulcs along median line of back and tail. Color plain brown; caudal fin darker, edged with white. This species dift'ers from Urolophiia aaterias in having a wider disk, more acnte snout, much smaller prickles, and fewer Hpinules on back and tail. Mazatlan. Three specimens
. The fishes of North and Middle America [microform] : a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Fishes; Fishes; Poissons; Poissons. «*i^.!ira Jordan mid Evermami.âFishes of North America. 2753 over uranchial archen; 16 to 20 large spinulcs along median line of back and tail. Color plain brown; caudal fin darker, edged with white. This species dift'ers from Urolophiia aaterias in having a wider disk, more acnte snout, much smaller prickles, and fewer Hpinules on back and tail. Mazatlan. Three specimens obtained in the Astillero, the longest 18 inches in entire length. (This species is named fur Dr. George Warren Rogers, a scholarly physician, native of Vermont, but long resident in Mazatlan.) Vrolophug rogerri, Jordan &. Starks, Fishes of Sinaloa, 388, 1395, Mazatlan, Mexico. (Tyi>e, No. 1700, L. S. Jr. Uuiv. Miis. Coll. Hopkins Exped. to Sinaloa.) Page 88. In the key at top of page for Rhinopterinw read Myliobatina: iW m 1 II I ,!n:,, 132. AETOBATUM LATICEP8 (Gill). This species is probably not different from A. narinari and may be omitted. We iind no differences between specimens from Mazatlan and the West Indies. The following description is based upon Mazatlan speci- mens : Length of disc If in width; proximal i of anterior margin of pec- toral fins straight, distal i convex; posterior margin concave, the end of each ray forming a small scallop; lateral angle sharp. Snout forming an angle, from its tip to division of nasal lobes, 1^ times bresidth of head; width of snout 1^ times distance from its tip to the division of nasal lobes; nasal lobes projecting back over the mouth; width of mouth 1^ its dis- tance to tip of snout; numerous blunt buccal papilhe around upper den- tal plate and on ridge between nostrils; interorbital 4^ in disk; eyes smaller than spiracles, which are as long as base of dorsal. Ycntrals well rounded, 3f in length of disk; tail 3^ times d
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectfishes
