76 B. W. Kunkel, 



incised, palm oblique and furnished with submarginal setae, prehen- 

 sile angle moderately prominent and bearing two stout setae ; finger 

 long and curved. 



Telson triangular, about as broad as long with apex rounded. 



Length 9 mm. There was a single specimen in the collection. 



Microdeutopus anomalus (Rathke, 1843) Bate, 1862. 



1843. Gauunanis anomahis. Rathke, Nova Acta Acad. Caesa- 



real Leopold. Carol. German., vol. 30 I, p. 63, pi. 4, fig. 7. 

 1862. Microdeutopus anomalus. Bate, Cat. Brit. Mus., p. 164, 



pi. 30, fig. 3. 



Eyes small, round, compound, widely separated from each other 

 dorsally, and very close to margin of interantennal lobes. Head 

 produced to form short, rather acutely pointed rostrum. 



First antennae about one half as long as body and with principal 

 flagellum longer than peduncle, made up of about 25 segments and 

 provided with accessory flagellum of 4 or 5 elongated joints ; second 

 joint of peduncle longest, third joint not more than one half as long 

 as first. Second antennae somewhat shorter than first, with very 

 short flagellum of about 8 joints furnished with setae ; glandular 

 cone long and slender; third joint less than twice as long as broad, 

 fourth and fifth joints very long and slender, subequal in length. 



Mandibles with all parts well developed, palp 3-jointed, with third 

 joint longer than second and with proximal half broad and distal 

 half tapering to a point and provided on inner margin with setae ; 

 primary and secondary cutting edges denticulated. Lower lip with 

 outer plates having anterior margin entire and widely separated 

 from each other and with inner plates wide, mandibular processes 

 long and slender. First maxillae with inner plate small, triangular, 

 provided apically with single plumose spine, outer plate of moderate 

 size with oblique distal margin armed in usual w^a}- ; palp well devel- 

 oped, 2-jointed, second joint curved and moderatel}' long, with apex 

 rounded and furnished with group of setae. Second maxillae with 

 plates moderately broad and rounded apically, furnished with abun- 

 dant setae on distal end ; outer plate slightly longer and broader 

 than inner. Maxillipeds with large rectangular inner plates extend- 

 ing as far as apex of first joint of palp, and furnished with slender 

 spines apically ; outer plates broad, extending nearly as far as apex 

 of second joint of palp, outer margin and apex rounded, inner mar- 

 gin straight and furnished with short odontoid spines which become 

 longer at apex ; palp 4-jointed and slender, second joint longest, 

 terminal joint provided with claw^like spine. 



