226 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



1876, but here, too, the name only was cited. It was not until 1881 

 that a description was published, this description by Sauvage based 

 on the same specimens, in the Museum d'Histoire Naturelle in Paris. 

 Although Sauvage credited the species to Bleeker, the credit belongs 

 to Sauvage himself, for he wrote: "This species was named but not 

 described, by Bleeker in his Nouvelle notice sur la faune ichthyologique 

 de Siam,. The description is made from the specimens labeled in the 

 hand writing of the learned ichthyologist." 



The original description is not wholly satisfactory and it is inap- 

 plicable in some particulars to specimens that in later years have 

 been referred to the species. Thus, Sauvage described the upper lip 

 as not fringed, but as a fringed upper lip is a generic character in 

 Lahioharhus it is to be inferred that this feature was overlooked. 



In October 1939 Dr. Jacques Pellegrin, of the National Museum of 

 Natural History in Paris, very courteously responded to a request 

 from the United States National Museum, and made a special exam- 

 ination of the types of Dmiglla siamensh, consisting of two specimens 

 from Petchaburi. He gave the following information regarding them : 

 They measure 137 + 30 and 130 + 30 mm. respectively; the scales 

 in the lateral line are 43 to 45; the scales around the caudal 

 peduncle number 20; the dorsal rays are 3 simple and 24 branched; 

 there is a single row of pores on the front of the snout, as stated by 

 Sauvage; and the upper lip in reality has a few fringes which, how^»^ 

 ever, are not very distinct and are difficult to see. Other features 

 brought out in the original description and not repeated by Dr. 

 Pellegrin are : Depth of body contained 3.6 times and length of head 

 nearly 5 times in the standard length ; 8 scales above the lateral line 

 and 5 scales between the lateral line and the base of the ventral fin ; 

 interrupted longitudinal lines on the body formed by a black spot 

 on each side; and an indistinct black spot at the base of the caudal 

 fin. 



The first reference to this species in recent years was by Hora 

 (1923b), who noted that a specimen 14.2 cm. long from the Menani 

 Chao Phya at Bangkok agreed fairly closely with Sauvage's descrip- 

 tion; its upper lip, hidden beneath the rostral fold, was distinctly 

 fringed. 



A specimen taken in the Meping at Chiengmai March 10, 1924, was 

 in general agreement with Sauvage's account and could not be made 

 to fit the descriptions of any of the species recorded for India, Burma, 

 and the Indo-Australian Archipelago. In the absence in Thailand 

 of adequate material for comparison at that time, this specimen was 

 sent to Dr. L. F. de Beaufort who, in June 1925, confirmed this identi- 

 fication. 



As vernacular names of this fish, Hora (1923b) recorded pla sa for„ 

 Bangkok, while at Chiengmai pla sol uk was heard. 



