JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 



303 



354. Neobythites sivicola (Jordan & Snyder). (Plate XLII, fig. 2). 



(Watasea sivicola Jordan & Snyder, not of Jordan & Starks). 



Misaki (Coll. Owston). 



The genus Watasea, based on this species, differs from Neobythites only in the 

 presence of two weak spines on the pre-opercle, instead of three as in Neobythites 

 gilli. Most of the species referred to Neobythites belong to the subgenus Watasea, 

 as Radcliffe has lately shown. 



This specimen. No. 6170a, C. M. Cat. Fishes, smaller than the tj^e, is plainly 

 identical with it. Body nearly uniformly gray, not banded as in A^. fasciatus. 

 Dorsal and anal broadly edged with black. This color has faded in the original 

 types, both long exposed to sunlight. 



In our young specimen the body is indistinctly covered with irregular faint 

 whitish blotches, a row of these being along the dorsal base. The dorsal aside 

 from these has no pattern anteriorly, being simply somewhat dusky, gradually 

 becoming very black in the last quarter, save for a narrow white margin. This 

 is continued on the caudal and anal, the latter being black with a white margin on 

 the posterior three-fifths of its length, without other pattern. Specimens identified 

 by Jordan & Starks as the young of Watasea sivicola are not the young of this 

 species, as may be seen in the accompanying table of measurements. We refer 

 these to Radcliffe's species, A^. fasciatus. 



Table op Comparative Measurements. 



Locality. 



Neobythites fasciatus. 



Misaki. 



Sagami. 



Neobythites Sivicola. 



Misaki. 



Misaki (Type). 



Body length 



Heads 



Depth 



Snout 



Maxillary 



Pectoral 



Ventral 



Snout- vent 



Snout-dorsal 



Snout-ventrals 



Dorsal rays 



Anal rays 



Scales (longitudinal) 



Scales (mid-dorsal to lateral Une). 



145 

 19 

 16 



4.5 



9 



13.5 

 12 

 36 

 22 

 14.5 

 99 

 90 

 125 



8 



132 



20 



18 



5 



9 



12 



11 



36 



23 



14.5 



105 



88 



120 



8 



140 



20 



18 

 5 



11 



14 



15 



44 



25 



16.5 



90 



75 



130 



8 



216 



21 



18 

 4.5 



11 



14 



14 



43 



25 



16 



94 



74 

 120 



Besides the differences in color, the present specimen of Neobythites sivicola 

 shows a longer maxillary, lesser number of rays in both dorsal and anal, longer 

 pectoral, longer distance from snout to vent, from ventrals to vent, and snout to 

 ventrals. In these differences it is in full agreement with the type. 



' Measurements given in hundredths of length without caudal. 



