170 PROCEEDINGS OP THE ACADEMY OF 



Family BATRACHOIDJE Sw. 



Genus BATRACHOIDES Lac. 



The family of Batrachoids is capable of the following division : 



A. Dorsal spines three ; opercular spines two. 



1. Body naked. Palatal teeth uniserial Batrachus. 



2. Body naked. Palatal teeth villiform Halophryne* 



3. Body scaly. Palatal teeth uniserial Batrachoides. f 



B. Dorsal with two spines ; operculum with one. 



1. Canine teeth none Thalassophryne. 



2. Canine teeth on vomer Porichthys. 



Batrachoides pacifici Gill. 

 Batrachus pacifici Giinther, iii. 173. 



One specimen is in the collection, and differs from those described by 

 Giinther in the uniform coloration and the larger number of rays. (D. III. 27. 

 A. 23.) 



Family GOBIOIDJE (Cuv.) 



Genus DORMITATOR Gill. 



DoRMITATOR MICROPHTHALMUS Gill. 



The greatest height is contained 3| times in the total length and equals the 

 length of the head. The eye is small, the diameter equalling only a quarter 

 of the interorbital area, and little more than an eighth of the head's length. 

 The maxillary ceases in front of the vertical of the eye. There are three 

 preopercular pores. The caudal is little longer than the interval between the 

 front of the orbit and the opercular lobe. The dorsal bent backwards reaches 

 to the base of the caudal. The pectoral is little shorter than the caudal. 

 There are thirteen rows of scales between the origins of the second dorsal and 

 anal fins. 



D. VII. I. 8. A. I. 9. P. 1. 15. 



Scales of lateral line 33. 



The color is blackish, with light spots at the junctions of the scales, especially 

 on the caudal portion. On the shoulder is a diffused black spot. A black 

 band extends from the eye to the angle of the mouth. The dorsal fins are 

 transversely spotted with darker, and the others clouded, the pectorals above 

 being clear. 



A single specimen, nearly a foot long, is in the collection. 



The Eleotris latifrons of Richardson, from the Pacific, is referred, after autopsy, 

 to Dormitator maculatas, (Eleotris macula (a Giinther ex Bloch) by Giinther, 

 which has only " nine or ten series of scales between the origin of the second 

 dorsal and the anal," the diameter of the eye " not quite one-third of the in- 

 terorbital space," and a less elevated body. 



Genus LEPTARIUS Gill. 



This new generic type is established for a representative of the Arii of 

 Bleeker, having six fleshy barbels, the band of teeth on the palate, behind the 

 maxillary band, quadripartite ; the head granulated and without lateral font- 

 anelles, the teeth of the dorsal spine before and behind directed downwards ; 

 with five branchiostegal rays, a slender body, and & very slender caudal peduncle, 

 the anal fin rather low and oblong, the thin, adipose fin extending behind the anal, 

 and the fins little developed 



This genus is closely related to Hexanematichlhys (Bleeker), but is distin- 

 guished by the characters italicized in the foregoing diagnosis. 



* Type, Halophryne Piemensis = Batrachoides Diemensis Les. 

 f liatrachuides turinamesis ex Block. 



[June, 



