GILBERT AND ST ARKS — FISHES OF PANAMA BAY 57 



deeply concave and without flat supraorbital areas. The serrations of the upper 

 lateral ridge are coarse. The skin is rough to the touch, and the lateral line is armed 

 with small, bony, stellate plates, which become larger posteriorly. 



We have no specimens of F. tabacaria, but from current descriptions it is 

 difi^erent from F. corneta. It seems always to have blue spots and to have few or no 

 serrations on the upper lateral ridge. It has not been recorded from the Pacific. 



Family SYNGN ATHIDiE. 



109. Siphostoma auliscus Sivain. 



Two specimens, 122 and 88 mm. long, were taken in the Rio Grande, at 

 Miraflores, near Panama. We have compared them with two small sjiecimens of 

 S. atilisciis from Magdalena Bay, L. C, and find the onl}' difference to be the more 

 anterior anal opening in the smaller specimen, in which it occupies the ring just 

 anterior to dorsal. In the other specimens it is in the same ring with the front of 

 dorsal. The Panama specimens are darker and more mottled. Each body ring has 

 a broken vertical white streak, and on about every fifth ring is a faint dark streak. 



no. Hippocampus ingens Girard. 



Three specimens taken, 5, 8, and 10 cm. long. The smaller two, a male and a 

 female, are rough with papillae, and have many dermal flaps. The largest one, a 

 female, is almost perfectly destitute of these, though upon close examination with 

 a lens very small, white papilhie are to be seen. 



Two specimens from Mazatlan in the collection of the Stanford University 

 have been examined. One is smooth, the other covered with dermal flaps. 



Family ATHERINID^. 

 III. Kirtlandia pachylepis (Gmither). 



This species and K. gi/berti, referred to the genus Menidia by Jordan and 

 Evermann (1896, pp. 798 and 801), the former afterwards transferred to the genus 

 Thyrina by these authors (1898, p. 2840), belong to the genus Kirtlandia. We 

 have compared them with K. vagrans, the type of the genus. Like the latter, they 

 have crenate scales, which are, howevei", smooth, not " very rough to the touch," as 

 described by Jordan and Evermann. Our specimens of K. vagrans and K. pachy- 

 lepis have no scales on the dorsal. The base of the anal has a row of rather long 

 scales. Both the dorsal and anal of K. gilberti are scaleless. 



Nine specimens of K. pachylepis were collected. They differ from Giinther's 

 description only in the slightly longer head, and in a greater range of fin-rays. 



Head and depth 5 in length of body without caudal. Eye and snout about 

 equal, 3^ in head. Angle of lower jaw slightly in advance of front of orbit. Inter- 



