344 PROCEEDINGS OF THE ACADEMY OF [DeC, 



differs from Glyptocephalus Gottsche, and from all other flounders, in 

 the very long and falcate pectoral fin of the right side, this fin being 

 longer than the head. 



AINIA Jordan. 



Type: Callopterus agassizi Thiolliere (fossil). 



A substitute name for Callopterus Thiolliere, 1858, preoccupied as 

 Callopterus Chaud., 1838, a beetle. The name is from the department 

 of Ain, in France, where the fossil in question was found. 



RAIAMAS Jordan. 



Type: Cyprinus bola Hamilton. 



A substitute name for Bola Giinther, 1868, preoccupied by Hamil- 

 ton. The species, Raiamas bola is well kno\vn to anglers in India, 

 as ''Rajah mas". 



TARSISTES Jordan. 



Type: Rhynchohatis Philippi, 1858. 



A substitute for the latter name, preoccupied as Rhynchohatus. 

 The genus is founded on a large ray with a linear, flat, paddle-like 

 snout, rounded at tip somewhat as in Polyodon and Mitsukurina- 

 Philippi gave to this animal no specific name. It may be called 

 Tarsistes philippii {rdfmoq^ an oar-blade) . The type is from the island 

 of Juan Fernandez, off the coast of Chili. 



VIGIL Jordan. 



Type: Pleurolepis pellucidus Agassiz. 



A substitute for Pleurolepis Agassiz, preoccupied in fossil fishes. 

 The type species is placed by Jordan and Evermann in Ammocrypta, 

 but Vigil pellucidus differs from Ammocrypta beani in having the 

 sides of the head scaly, the sides of body largely scaled and the 

 mouth much smaller. The name Vigil (on the watch) alludes to 

 the habit of lying motionless, buried in the sand, only the alert eyes 

 being visible. 



ORQUETA Jordan. 



Type: Micropteryx polycentrus Kner. 



Replaces Micropus Kner (S. B. Akad. Wiss. Wein, 1868, p. 28), that 

 name being four times preoccupied; Orqueta differs from Chloro- 

 scombrus Girard in the very much larger number of dorsal spines. 

 The name Orqueta is a Spanish vernacular for Chloroscombrus orqueta 

 Jordan and Gilbert on the west coast of Mexico. 



