Bl u.iiix III MSI If 01 I OMPARA nVl IO0LOGT. 



& in \\>\ LID \i 

 80. A.DENO& BEND1 i.\ i I IIEN8I8, jp, DOV. 



Type.— 11 C. X. 1,959. Parattfe. M. C. Z. 2,160. Pijis: 



\ "ainiii A\ a (W. M. Mann). 



Fulvous, head slightly darker, of verj weak chestnut tinge 



Cephalic plate Bubquadrate, angles rounded, sides a little convex, caudal 

 margin straight, anterior convex or Bubtriangular; only near once and a fourth 

 as long as wide (9: 16); no frontal suture. 



Antennae long, terete; last article about equalling the two preceding. 



Labium with near twenty-six teeth of which the lateral are less chitinoUfl 

 and more finely tipped, the median ones (ten in number) stout and dentiform. 

 Divisions of dental plate of mandible apparently simple. 



Prebasal plate not exposed. 



Basal plate trapeziform, the exposed part three and a half times wider than 

 long; measured from edge of cephalic plate to caudal edge overlapped by first 

 tergite, about 2.7 times wider than long. 



Prehensors rat her weak, not attaining front margin of head, wholly unarmed. 



Prosternum also unarmed; without chitinous lines. 



Dorsal plates bisulcate. Last dorsal plate broad, shield-shaped. 



Spiracles circular; first much larger than the second, the others decreasing 

 gradually caudad. 



Anterior ventral plates excavated in front, with a triangular peg from 

 caudal margin of preceding plate fitting into the excavation, the processes 

 getting smaller in going caudad. Last ventral plate broad, narrowed caudad, 

 caudal margin mesally emarginate. 



Ventral pores on the posterior middle part of the plate in a small subcircu- 

 lar or subelliptic area. 



Pleural pores in two large pits on each side at the edge of the plate. 



Anal legs composed of six articles beyond coxopleurae, joints long and 

 slender; no claws. 



Pairs of legs, fifty-nine to sixty-three. 



Length, 50 mm. 



This species is like the Brazilian A. phtsiodotita (Attems) and unlike 

 all other species in not having the prebasal plate exposed, but differs 

 from that species in the simpler divisions of the dental plate, these not 

 being dentate, the shorter prehensors, greater number of legs and other 

 features. All the previously known species were from South America 

 and the West Indies. 



90. EUCRATONYX HAM AT US PoCOck. 



Willey's Zool. results, 1898, pt. 1, p. 66, pi. 6, fig. 2c l 

 Locality. — New Britain. 1 



