652 



ME. E. J. MIERS ON THE 



the spines coalescent at base, and then divergent. A prominent 

 praeocular and postocular spine. Basal joint of antennae consi- 

 derably enlarged. Merus joint of outer maxillipedes entire at 

 its distal end. Ambulatory legs of moderate length. Type 

 LoxorhjncJius c/randis, Stimpson. 



'^LiBiDOCLEA., M.-Edioards. Kostrum prominent, not deflexed 

 and emarginate at its distal end. Merus joint of outer maxilli- 

 pedes notched at its distal margin. Legs rather long. Type Lihi- 

 doclea granaria, M.-Edw. & Lucas. 



This genus is closely allied to Lihinia in the family Peri- 

 ceridse. 



DocLEA, Leacli. Carapace orbiculate-triangular, or orbicu- 

 latc. Eostrum usually very short, emarginate. No praeocular 

 spine. Basal antennal joint but moderately enlarged at base. 

 Legs very long and slender. Type Doclea Bissonii, Leach. 



This genus is closely allied to Egeria^ and marlis the transition 

 to that genus of Maiidae. 



Subfamily 5. Stenocionopin^. 



Eyes elongated and retractile, partly concealed by the praiocular spine, 

 which is very greatly elongated. Basal antennal joint considerably en- 

 larged throughout its length. 



The rostrum is composed of two spines. Carapace somewhat oblong 

 and posteriorly prolonged. The articulation of the merus joint of the 

 outer maxillipedes with the preceding joint is often very peculiar. 



The enlarged basal antennal joint marks the approach of this 

 subfamily to the Maiidae. Were the upper orbital margin as 

 well developed in all the genera as in Tyche, it would be better to 

 constitute it a subfamily of that group. 



^Stenocionops, Latreille. Upper orbital margin behind praB- 

 ocular spine not developed. Posterior lobe of the carapace 

 simple. Merus joint of outer maxillipedes greatly produced 

 and acute at its antero-external angle, and with a notch on its 

 inner margin for the insertion of the fourth joint. Type Steno- 

 cionops cervicornis (Herbst). 



*Stilbognathus, t;. J/c^r^e^^. Facies of AS'^e^^oc^o^op5. Ischium 

 joint of the outer maxillipedes with a longitudinal pit on its outer 

 surface which is covered with bristles ; merus joint convex and 



