Halgan's Spine-Tailed Ray = bluespotted ribbontail ray (Taeniura lymma) Halgan's Spine-Tailed Ray (Taeniura lymma syn. Trygon halgani)
The natural history of fishes, particularly their structure and economical uses. By J. S. Bushnan ... Illustrated by thirty-three coloured plates, with portrait and memoir of Salviani.
Author	J. Stevenson Bushnan / John Stevenson Bushnan (1807–1884)
BHL Page URL	https://www.biodiversitylibrary.org/page/12845919
Source: https://commons.wikimedia.org/wiki/File%3AThe_natural_history_of_fishes%2C_particularly_their_structure_and_economical_uses_BHL12845919.jpg
The bluespotted ribbontail ray (Taeniura lymma) is a species of stingray in the family Dasyatidae. This species is common throughout the tropical Indian and western Pacific Oceans in nearshore, coral reef-associated habitats. Taeniura lymma is a fairly small ray, not exceeding 35 cm in width, with a mostly smooth, oval pectoral fin disc, large protruding eyes, and a relatively short and thick tail with a deep fin fold underneath. The bluespotted ribbontail rays can be easily identified by their striking color pattern of many electric blue spots on a yellowish background, with a pair of blue stripes on the tail.
Order:	Myliobatiformes
Family:	Dasyatidae
Genus:	Taeniura
Species:	Taeniura lymma (Forsskål, 1775)
Synonyms
 - Raja lymma Forsskål, 1775
 - Trygon ornatus Gray, 1830
 - Trygon halgani Lesson, 1829
 - Discobatis marginipinnis Miklouho-Maclay & Macleay, 1886