70 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



Family PLATYCEPHALIDiE. 



ONIGOCIA Jordan and Thompson, new genus. 



Oidgoda Jordan and Thompson, new genus of Platycephalidse; type, Platycephalm 

 macrolepis Bleeker. 



ONIGOCIA MACROLEPIS (Bleeker). 



Two young examples. 



The genus ThysanopJirys Ogilby, as left by Jordan and Richardson/ 

 should apparently be further subdivided. The present species is 

 the type of a distinct group, characterized by the presence of large 

 scales (about 40 in lateral line), three preopercular species and a 

 small cirrus over the eye. This genus may be called Onigocia from 

 the Japanese name Onigochi (devil flat-head) applied to Onigocia 

 spinosa, the second Japanese species of the same genus. 



Of the other generic types heretofore included under ThysanopJirys, 

 Insidiator Jordan and Snyder (meerdervoorti^rudis) differs in the 

 small scales and in the absence of cirri over the eye. Thysanophrys 

 proper of Austraha and the East Indies (longiceps, etc.) has small 

 scales (about 75 to 90), a well-marked cirrus over the eye, an unarmed 

 lateral line, and but two preopercular spines. Grammoplites Fowler 

 {scaher and other East Indian species) has the lateral line armed 

 throughout with spines. The remainmg Japanese species (japonicus, 

 erocodilus) differ from Orammoplites in having the lateral hne unarmed. 

 These may constitute the new genus, Inegocia Jordan and Thompson, 

 of which the type is Plafycephalus japonicus Krusenstern. 



Inegochi means Rice-kochi or flat-head. Kochi is the general 

 name in Japanese for all Platycephahdse and Callionymida?. 



Family GOBIID^. 



PTEROGOBIUS ELAPOIDES (GUnther). 



A single example of this species, partly intermediate in characters 

 between Pterogohius elapoides Giinther and P. dairnio Jordan and 

 Snyder. The body bands are rather those of P. daimio, the width 

 of the black of the third body band being contained but two times 

 and a half in the space intervening between it and the next. At the 

 base of the caudal on one side is a band nearly as long as the caudal 

 peduncle is deep, while on the other it is merely an oblong spot half 

 that length. In this regard as in all other characters except the 

 breadth of the lateral band this specimen is typical of P. elapoides. 

 It is a female with large, ripe ova, and short dorsal fin. 



The question as to the relations of the forms called daimio and 

 elapoides is still unsettled. Jordan and Snyder regarded the two as 

 different, the form called daimio being the southern representative 



> Proc. U. S. Nat. Mas., vol. 33, 1908, p. 631. 



