' ]'8m"'] proceedings of the national museum. 391 



Pairs of feet in the male, sixty-five; length of body 50 millimetres, 

 width 1.55 millimetres. 



This species is described from an apparently adult male collected by 

 the Albatross expedition of 1887-'8S, at Pichiliugue Bay, Gulf of Califor- 

 nia. Through the kindness of the curators of the departmen t of insects 

 of the National Museum, we have had opportunity to dissect and 

 study the type and only specimen, No. 958. 



A comparison of our description with the original of Mr. Bollmau 

 will show that we differ from him in saying that the labrum is entirely 

 coalesced, that the claw of the maxillary palpus is excavate, that the 

 prehensorial feet attain the frontal margin of the head, that the sterna 

 are bisulcate, and that the specimen is a male. 



The condylus in this species is very similar in shape to that of Schen- 

 dyla nemorensis, and is correspondingly larger. 



The completely coalesced condition of the labial and maxillary sterna 

 is, as far as we have been able to ascertain, entirely unique in Geophil- 

 idoe. The sides of the anterior margin of the maxillary sternum are 

 strongly defined, almost chitiuized, but the margin is transparent next 

 the coalesced portion. The coalescence is complete; no trace of a divis- 

 ural line being apparent in the reticulated integument. 



The only species of the family whicb we can suggest as having struc- 

 tures at all likely to be homologous with the large lateral processes of 

 the labium is Orya barbarica, as figured by Meinert. 



The spoon-shaped claw of the maxillary palpus, being fringed with 

 spines all around its margin, appears to have two rows of spines until 

 its true shape is made out. 



The claws of all the feet are, like those of the maxillary palpi, exca- 

 vate, or rather grooved, on the under side, and the ends of the claws 

 appear blunt or truncate. This character is more prominent in the 

 feet of the posterior end of the body. 



Escaryus, gen. nov. 



Body scarcely de])ressed, moderately narrowed posteriorly. 



Antenmie filiform. 



Frontal lamina coalesced; cephalic lamina not covering the sides of 

 the prehensorial feet ; j)rebasal lamina exposed ; basal lamina broad, 

 sides converging anteriorly. 



Labrum entirely free, or slightly joined at the lateral angles, medianly 

 deeply emarginate and dentate. 



Mandibles with one pectinate and three dentate lamellae ; condylus 

 present. 



Labial sternum entire ; interior labial processes and labial palpi ob- 

 tusely conic, the latter with a small process on the basal joint. 



Maxillary sternum obtusely notched in the middle, claw of maxillary 

 palpus with an interior thin edge which is provided with one row of 

 spines. 



