VO i889. I! ] PROCEEDINGS OF THE NATIONAL MUSEUM. 215 



inner surface; beneath 10-12 in 2 or 3 series; apical process large and 

 blunt, armed with 9-11 small spines. 



Posterior pleurae narrow ; apex long, armed with 7-9 spines, posterior 

 margin concave; a marginal spine. 



Length 75 mm . 



Described from one specimen of which the anal pair of legs is broken 

 oft'. 



This new species is separated from heros,pachypus, nicaraguensis, and 

 viridis by the large number of spines of apical process of femora and 

 the well-marked sulci of first dorsal plate. 



6. Scolopendra galapagoensis sp. uov. 



Diagnosis. — Related to Scolopendra mridicornis Newport, but the 

 spines of apical process of femora of anal legs, 6-8; spines of apex of 

 posterior pleurae, 9-12; spines of femora of 2-20 pairs of legs, 4 or 5. 



Type.— So. 594. 



Hae. — Chatham, James, and Albemarle Islands, Galapagos Archi- 

 pelago. 



Description. — Very dark brown, more yellowish posteriorly; under 

 parts more brown than upper; the first five or six antenna! joints dark 

 blue, rest rusty ; tarsi brownish, rest of legs bluish-brown, except base 

 of femora, which is more brown, like ventral plates; posterior pleurae 

 and femora of anal legs reddish-brown. 



Robust, smooth, all parts very slightly punctate. 



Head suboval ; two longitudinal sulci, which break up posteriorly, 

 and send a branch along lateral margin. 



Antennas long, 17-jointed, articles long, basal snbcrassate, the first 

 four or five not hirsute. 



Prosternal teeth 3+3, large, inner coalesced; a transverse sulcus 

 along anterior part of sternum. 



The first four dorsal plates iminarginate; posterior borders trans- 

 versely wrinkled ; crest of anal segment weak, only extending three- 

 fourths of the way. 



Sulci of ventral plates distinct; last plate rather short, narrow, pos- 

 terior border rounded. 



Second tarsal joint of all the legs, except anal pair, armed. Anal 

 legs rather long and stout; 10-13 spines on the superior interior sur- 

 face of femora arranged in 3 series; within are 2 or 3 tmiseriate spines; 

 beneath 7-9 spines arranged in 2 or 3 series; apical process with 6-8 

 spines. 



Femora of 2-20 pairs of legs, armed with 4 or 5 spines at their exte- 

 rior apex, the posterior usually with 5 spines ; femora of penultimate 

 pair of legs armed above with 1-3 spines. 



Posterior pleurae with 9-12 apical spines and 1 or 2 marginal; above 

 on margin of dorsal plate are 2 small spines. 



Length of largest specimen 160 mm . 



