526 proceedings of tin: \\rio\\i. \nsi:i \i. vol.38. 



probable that the mouth is more nearly horizontal than in Thalas- 

 sophryne. The further description of the mouth as wide and almost 

 transverse ("La boca es muy ancha y cast transversal"), taken in con- 

 nection with the broad snout, is of little value in this connection. 

 The maxillary apparently reaches somewhat beyond eye. The teeth 

 are conic and Obtuse, uniserial in mandible and premaxillary : those 

 of the mandible and premaxillary described as pointing inward while 

 those of the maxillary point outward. ("Los dientes son conicos y 

 obtusos, formando una serie en el premaxilar, y una en la mandibida; 

 /us de la mandihula // d</ premaxilar son dirigidos hacia adentro, y los 

 del maxilar hacia afuera.") There are no teeth on the maxillary in 

 Thalassophryne. The pectorals are obliquely rounded and reach 

 past the base of the dorsal and anal. Dorsal and anal well separated 

 from the base of the caudal. Caudal somewhat rounded. 



Color yellowish or yellowish brown marbled with blackish and with 

 three wide blackish cross bands along the base of the soft dorsal. 

 The color fades to a dirty white below. 



The type of the species was taken at Montevideo; later another one 

 was seen at the same place, and Berg reports that the fishermen claim 

 to have seen many of them at Maldonado. 



We have no knowledge of this species further than the descriptions 

 furnished by Berg. 



I.XPLANATION OF PLATES. 



Plate 31. 



Thalas8ophryne <l<>ui, copied from Proc. Cal. Acad. Sci., ser. 2, vol. 0, 1896, pi. 38. 



Plate 32. 



Fig. I. Thalassophryne punctata, drawing by Miss Evelyn Mitchell from cotype No. 

 1632, Mus. Comp. Zool., Porto Seguro, Brazil. Coll. C. F. Hunt and E. 

 Copeland, Thayer Expedition. 



2. Thalassophryne maculosa, drawing by Miss Violel Dandridge from cotype of 



Thalassophrym nattereri, No. l27-_'ii, Mus. Comp. Zool., Para, Brazil, ('nil. 

 I.. A.gassiz, Thayer Expedition. 



3. Photograph of opercular spine of Thalassophryne dowi No. -11430, U. S. N. M. f 



Panama. ('"1!. Sir. Albatross. 

 I. Photograph of opercular spine of Porichthys greenei, cotypeof Thalassophryne 

 dowi. 



I'i \ ii :'.:'.. 



Thalassophryne maculosa, copied from Trans. Zool. Soc London, vol. 6, pi. 68 



Plate 34. 



Thalassophryne reticulata, copied from Trans. Zool. Soc. London, vol. <i, pi. <>8. 



