125 FISHES OF SINALOA. 497 



Skull without median crest. Interorbital space not 

 concave. Head not very abruptly widened behind eyes. 



One specimen i^i inches long obtained. This spec- 

 imen differs but slightly from Giinther's account of Go- 

 bins paradoxus, a species which is the type of the genus 

 Garmannia of Jordan & Evermann (MS.), distinguished 

 from Gobius by the half -naked body. The genus is 

 named for Mr. Samuel Garman, the accomplished ichthy- 

 ologist of the Museum of Comparative Zoology at Cam- 

 bridge, Massachusetts, in recognition of his important 

 contributions to ichthyology. 



207. Aboma etheostoma Jordan & Starks, n. gen. and 

 n. sp. Plate 1. 



A single small specimen found in the mud on a shallow 

 bottom in the Astillero. 



Aboma, new genus, allied to Microgobius Poey, distin- 

 guished by the large, ctenoid scales, which cover the 

 body; head naked, rather long, pointed in profile, the 

 mouth moderate, not very oblique ; teeth rather strong. 

 Dorsal spines more than six, none of them filamentous; 

 soft dorsal and anal short; no flaps on shoulder girdle. 

 Cranium with a slight median crest. The name Aboma 

 is used by the Mexicans in Sinaloa as synonymous with 

 goby. Besides the new species, Aboma etheostoma, which 

 is the type of this genus, probably Gobius chiquita Jen- 

 kins & Evermann, and Gobius lucretice Eigenmann & 

 Eigenmann, will be referable to it. 



Head 3^; depth 5; D. VTII-ii; A. 10; scales 26; 

 longest dorsal spine 1% in head; eye 3; snout 4; max- 

 illary 3. 



Body long and low, moderately depressed and pointed 

 forward. Scales large, ctenoid behind, none on head, 

 those on nape and belly much reduced. Mouth moderate, 

 terminal, moderately oblique ; the maxillary reaching 



