154 bulletin: museum of comparative zoology. 



shorter (f. e. anteroposteriorly) and with fewer crenuH; caudad the 

 marginal incisions deepen, on most leaving four separated lateral lobes. 

 Pores located above base of keels near middle of length of segment and 

 thus widely removed from the margin; apparently on segments five, 

 seven, nine, ten, twelve, thirteen, and fifteen to seventeen inclusive; 

 moderately prominent. Tergites all strongly tubercular, the tubercles 

 uniform and extending out over keels, no middorsal series of larger 

 tubercles. Last (nineteenth) tergite large, narrowed caudad with 

 sides convex, widely overlapping the valves, dorsal surface densely 

 tubercular. 

 Genotype. — A. parvus, sp. nov. 



416. Atopodesmus parvus, sp. nov. 



Type.— M. C. Z. 4,648. Paratype.— M. C. Z. 4,649. Tas- 

 mania (G. H. Hardy). 



General color brown. Legs and antennae fulvous. 



Head covered above by a median longitudinal sulcus. Surface above level 

 of antennae densely finely granular, the granulations coarser above. 



Tubercles of tergites small, uniform, densely arranged. On average tergites 

 five or six transverse rows of tubercles. Tubercles each with a very short, 

 curved seta. Lateral margin of second tergite with eight or nine crenulations. 

 Other keels normally with four lateral crenuli or lobes of which the anterior 

 tends obviously to recede caudad. Caudal margin of most keels with a single 

 large conical tooth close to the base. Posterior angles of last few keels weakly 

 produced. 



Anal scutum above densely tubercular. Extending beyond valves with the 

 margin extending or cupping down about them. Anal valves smooth; each 

 with tvv^o setigerous tubercles situated about midway between mesal and ectal 

 margins. 



Length, near 6 mm. 



417. Plusiodesmus felix Silvestri. 

 Term, fiiz., 1899, 22, p. 209, pi. 11, fig. 22-25.1 



Locality. — New Guinea: Tamara Island.^ 



418. Lophodesmus pusillus Pocock. 

 Weber's Reise, 1894, 13, p. 372, pi. 22, fig. 12. i 



Locality. — Flores: Maumerie.^ 

 This is the type of the genus. 



