chamberlin: geophiloidea of the southeastern states. 433 



Lahrum apparently of one piece which is free laterally and fused 

 mesially as in the preceding genus; free margin at middle a little 

 convex, fringed with long teeth. 



Mandibles with a single pectinate lamella; no dentate lamella. 



First maxillae with sterna completely fused; inner and outer 

 branches distinctly set off by suture; the outer biarticulate, with long 

 lappets. 



Sterna of second maxillae also completely fused as indicated in 

 description of family; palpus with a simple claw of normal size. 



Prehensorial feet conspicuously exposed from above; all articles 

 devoid of teeth; chitinous lines strongly developed. 



Ventral pores on anterior sterna, few; in a transverse narrow band 

 caudad of middle of plate. 



Last ventral plate very wide. Coxopleurae with a single porigerous 

 pit on each side, this partly covered by ventral plate in type. 



Anal legs with but five joints beyond coxopleura; clawless. 



Type. — Timpina texana, sp. nov. 



TlMPINA TEXANA, sp. nOV. 



Conspicuously attenuated caudad and cephalad. 



In the type specimen, bleached in the preservative, the body in 

 general appears yellow at ends and darker, more brown, over middle 

 portions; an obscure geminate dark band along part of dorsum. 



Head truncate anteriorly and posteriorly, or the anterior margin 

 slightly convex; anterior and posterior margins subequal; sides over 

 middle portion of length nearly straight or a little excurved, at ends 

 bend in mesad; nearly equal in length and breadth or a little longer 

 than wide (39 : 38) ; 3 J times longer than the basal plate. Prebasal 

 plate not exposed. Basal plate 3j times wider than the median 

 length. 



Claws of prehensorial feet, which are very short and but little 

 curved, when closed end to end almost exactly even with anterior 

 margin of head; all articles of feet devoid of denticles. Prosternum 

 with anterior median margin weakly incurved; chitinous lines strongly 

 developed; much wider than long (ad 10:7); 2\ times longer than 

 the prefemur. 



Antennae conspicuously flattened and attenuated distad; moderate 

 or short; articles decreasing in length distad to penult; ultimate 

 article of same length as the two preceding taken together or nearly 

 so; proximally clothed with long stiff bristles which distad are re- 



