GENUS SEBASTODES. 



607 



g. Postocular and tymi^anic spines both present. Interopercle and 



subopercle without spines. Lower pectoral rays normal, 

 h. Coronal spines; nuchal spines, a spine below, another in front 

 of eye. * matzuharae with this species we are not 



acquainted, 

 hh. No coronal spines. Sebastomus Gill. 



miniatus, pinniger, levis, aereus^, constellatus, umbrosus*, rosaceus, 

 rhodochloris* , gillP, rupestris*, eos, chlorostlctus* , ruber*, rufus. 

 gg. Postocular spine wanting, 

 i. Coronal spines none. 



Pteropodus E. & B.i 

 Species with normal pectoral rays, (living off the bottom) 

 saxicola*, prorigerf^, brevispinis'^ , elongatus, sinensis. 

 Species with lower pectoral rays thick (living on the bottom) 

 zacentrus* , maliger, caurinus, vexillaris, rastrelliger, nebulosus, 

 carnatus, chrysomelas . 

 ii. Coronal spines present. 



AUCTOSPINA E. & B.'^ 

 aurora^, auriculatus. 

 ' t The specimen described by E. & E., Proc. Cal. Acad. Sci. (2) III, 15, 

 1890, is a species distinct from proriger. 



The inter-relationship of these genera is complex. It may be repre- 

 sented by the following diagram, where the genera with the united parietals 

 are followed by an asterisk. 

 ^Type P. maliger (J. & G.) 

 ^Type A. auriculahis (Girard). 



Auctospina 



Sebastichthys" Pteropodus Sebastomus 



Sebastodes 



Acutomentum^ 



Sebastosomus' 



Primospina* 



