WEST INDIAN CENTIPEDES — CRABILL 181 



Ultimate pedal segment: Pretergite siitm-ate on each side, delin- 

 eated from its pleurites by pronounced longitudinal sutures. Tergite 

 subtriangular, the rear margin naiTowly rounded, laterally leaving 

 much of coxopleura exposed from above. Presternite distinctly 

 divided medially. Sternite sides straight, posteriorly truncate; 

 greatest width somewhat greater than gi-eatest length. Each coxo- 

 pleuron with two pores and associated glands, the former exposed 

 ventrally (not wholly covered by the sternite), the glands are of the 

 homogenous type (i.e., lack inclusive smaller glands). Each leg with 

 six articles distal to the coxopleuron; as a whole evenly attenuate, 

 robust, swollen; pretarsus represented by a long, straight, setiform 

 structure. 



Postpedal segments: Gonopods consisting each of one article, 

 medially imperfectly separated. Terminal pores absent. 



Paratypes: One male, 13 mm., 55 pedal segments; one male, 9 mm., 

 55 pedal segments. See collection data for holotype. The two para- 

 types agree closely with the description of the holotype above. 



Subfamily Schendylinae 



Schendylurns virgingordae, new spe«;ies 



Figure 13-17 



The new species belongs to that division of Schendylurus whose 

 species possess: (1) Undivided pore fields, but only on the more 

 anterior sternites; (2) a distinctly divided mandibular dentate lamella; 

 (3) two pairs of well developed maxillary lappets. On the basis of pub- 

 lished descriptions S. virgingordae seems most like the African *S'. polypus 

 Attems and S. australis Silvestri, and the Peruvian S. montivagus 

 Turk — if the latter possesses first maxillary lappets, a condition that 

 is not clarified in Turk's original description. Aside from the question 

 of lappets, Turk's species differs from virgingordae as follows: S. 

 montivagus: Mandibular dentate lamella divided into four blocks; 

 labrum with 37 teeth; ultimate pretarsus is evidently a distinct fleshy- 

 eminence; first two pedal sternites without pore fields; pore fields 

 subelliptical. S. virgingordae: Mandibular dentate lamella divided 

 into three blocks; labrum mth less than 20 teeth; ultimate pedal 

 pretarsus not tuberculate, represented only by an acicular bristle; 

 second pedal sternite with a large pore field, the latter and succeeding 

 pore fields distinctly subtriangular, each Avith a prominent posterior 

 apex. S. virgingordae resembles australis rather closely except for the 

 lack of first maxillary lappets in the African form. Attems' polypus 

 differs from virgingordae in the former's abruptly narrowed ultimate 

 pedal second tarsus, peculiarly shaped pore fields, number of pedal 

 segments, mandibular divisions, and deeply embayed labrum. 



