46 PEOCEEDINGS OF THE NATIOl^AL MUSEUM. vol. fiO. 



obviously exceeds it (pi. 17, fig. 3). On the segments of the middle 

 region of the body the pore swelling is obviously behind the middle 

 of length of keel, as shoAvn in the figures. Dorsal surface of meta- 

 zonites densely granular, with two transverse series of distinct, larger 

 tubercles behind the middle. Sternites broad, without processes ex- 

 cepting a low, pointed tubercle at base of each posterior leg and a 

 less distinct one at base of anterior leg on posterior segments. On the 

 last two sternites these processes are more developed. 



Anal scale broad, mesally extended into an acute process between 

 the two setae (pi. IT, fig. 4). 



Proportions of points of legs as represented in plate 17, figure 6. 



The gonopods of the male are characterized by having the accessory 

 blade broad and abruptly narrowed below the distal end, thus ap- 

 pearing shouldered on the mesal side, with the apical portion shaped 

 something like a bird's head in outline (see further pi. 17, fig. 5). 



Length, about 52 mm. ; width, 7.2 mm. 



Locality. — Honduras: La Ceiba, two males (W. M. Mann). 



Type.— C'Ai. No. 847, U.S.N.M. 



114. CHONDRODESMUS ALIDENS, new species. 



Plate 17, figs. 7-9. 



Chocolate brown, with outer part of keels and a narrow band across 

 caudal border of metazonites yellow. Legs and antennae fulvous. 

 The keels are narrower and a little more depressed than in the pre- 

 ceding species and differ conspicuously in form. The angular exten- 

 sions of the caudal margin of keels is more pronounced. On the pore- 

 bearing segments of the middle region of the body the pore swelling 

 is obviously farther forward, being near the middle of the length of 

 keel, as shov»^n in plate 17, figure 7. The posterior corners of fifteenth 

 keels is still excavated instead of being carried into a process caudad 

 of posterior margin. The production is also much less developed on 

 the sixteenth keels, where the angulation of the caudal margin ex- 

 tends as far caudad as the caudal process proper (pi. 17, fig. 8). The 

 dorsal surface is densely finely granular, but quite lacks the series of 

 tubercles as shown in the preceding species. 



The anal scale is proportionately broader, with the caudal angle 

 more abruptly produced (pi. 17, fig. 9). 



Width. 7 mm. 



Locality. — Honduras: La Ceiba, two females W. M. Mann). 



Type.—C?,t. No. 857, U.S.N.M. 



115. CHONDRODESMUS PANAMENUS, new species. 



Plate 17, fig. 10 ; plate IS, figs. 1-3. 



Chestnut in color, with the keels and a narrow, interrupted median 

 longitudinal stripe along the prozonites and on the anterior part of 



