NO. 13.58. JAPANESE SCULPINS— JORDAN AND STARKS. 235 



}i. Ventral rays I, 3 (allies of OtifjoroUuK). 



i. Upper preopeiTular spine long, with antler-like proceeses; no anal 



papilla, no flap above eye Cottiusculus, 27. 



///(. Ventral rays I, 2 (allies of Pseitdoblennius) . 



j. Preopercle with antler-like hooks or processes aboxe. 



/.-. Preopercnlar spine rather long and slender, with one or more 

 hooked teeth al)ove; skin naked; no cirrns alxjve eye. 



K/iqihichthyK, 28. 

 kk. Preopercular spine short and flat, divided into many points 



at tij); a simple cirrns above eye llrHifln/s, 29. 



a. Preopercnlar spine, simple or forked, without antler-like pro- 

 cesses or hooks above. 



I. Preopercnlar 8i)ine forked at tip, a pair of simjile cirri at the 



nape ■ Furcina, 30. 



//. Preopercnlar spine simple. 

 7n. Head normally formed. 



n. Pectoral tins very large; a small tentacle on each pore 



of lateral line Oct/nedcK, 31. 



7in. Pectoral fins moderate: anal pai)illa large. 



o. Anal papilla cylindrical, trilobate; a tentacle over 



eye rsrudohknnins, 32. 



00. Anal papilla simple; three pairs of multifid flaps 



above head Bcro, 33. 



771//). Head very slender, depressed, and pointed, pike-like; 

 body compressed, with very slender caudal i/eduncle; 

 no cirri on head; preopercnlar sjiine straight and 



sharp; skin smooth 1 'cl/itor, 34. 



/(/;//. Ventral rays I, 4; preopercnlar spine strongly hooked upward. 



Artedldlus, (i. 

 FF. Blepsiix.e. Skin almost every where evenly rough with small bluntish 

 l>rickles; head and body more or less compressed; fins more or less 

 elevated. 



]i. Gill membranes free from the isthmus. 



(J. Spinous dorsal not notched; sides without 



smooth areas Histiocottus, 35. 



qq. Spinous dorsal deeply notched; sides with defi- 

 nite smooth areas Blepi^ias, 36. 



/*/;. (iill membranes united to isthmus; first dorsal 



not elevated X<iuli^cuj<, 37. 



FF. IIk.mitkutekin.k. Spinous dorsal longer than soft part, of 14 to 18 

 si)ines; skin rough with prickles and tubercles; teeth on vomer and 

 palatines; gill membranes free from isthmus; no slit behind last gill; 

 head depressed. 



'/. Spinous dorsal of 16 to IS si)ines, deeply 

 notched, the first sjiines liighest. 



Ilcniitriplcriia, 38. 

 BB. PsvrnKoLrTiN.K. Spinous dorsal not evident, its slender spines liidden in the 

 skin; head unarmed, covered by lax skin; no slit l)ehind la.«t gill; no teeth 

 on vomer or palatines; ventral rays I, 3; bones of head moderately cavern- 

 ous ['.ti/diwIitliH, 39. 



.1.1. Kkki NiiN.v,. Ventral fins wholly wanting; pectoral fins with the four lower- 

 most rays simple and free from the membrane; teeth on vomer and i)alatines; 

 gill meml>ranes free from the isthnuis; skin covereil with velvety jirickles. 



Frt'uitia/<, 40. 



