178 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



The flagellum is composed of eleven articles, with the fir.st article 

 slender, equaling in length the following article. 



The second pair of antennae extend to the 

 fourth epiraeron; the flagellum is composed 

 of twenty-four articles. 



The first segment of the thorax is slightty 

 bisinuate on its dorsal surface. The epimera 

 are rather narrow; the posterior angles of the 

 posterior epimera are acutely produced; the 

 last epimeron extends to the middle of the 

 first segment of the abdomen. 



The prehensile legs are slender, smooth; the 

 basis is rather narrow; the anterior ungulae are 

 rather short, somewhat incurved; the poste- 

 rior ones are somewhat larger. 



The ambulatory legs are produced, slender, 

 and furnished with scattered spines. 



The first segment of the abdomen is largely 

 concealed. The last segment is Ungulate, 

 posteriorly obscurely crenulate, smooth above. 

 The uropoda are rather long; the inner branch 

 is much longer and wider than the outer branch ; 

 both branches are posteriorly attenuated and 

 obscurely crenulated. 



Length 11.5 mm. a 



FIG. 160. ^Eo A TENUIPES ( AF- 

 TER SCHICE DTE AND MEINERT). 

 a, FRONTAL MARGIN WITH AN- 



TENN.E AND FRONTAL LAMINA. 



6, YOUNG FEMALE: c, RIGHT 



LEG OF SECOND PAIR. (ALL 

 ENLARGED.) 



The above description is adapted from the following one of Schioedte and 

 Meinert's: 



Producte obovata, supra prseter punctaram ordinariam laeviuscula. 



Frons bisinuata, acumine procumbente laminae frontali contiguo. 



Lamina frontalis rhomboidalis. Oculi magni, oblongi, seriebus ocel^orum quater- 

 nis contigui. Antenna? primi paris angulum posticum annuli primi trunci attin- 

 gentes, scapo articulum quartum, flagello articulum decimutn antennarum secundi 

 paris explentes; flagellum 11-articulatum, articulo primo tenui, articulum sequentem 

 longitudine sequante. 



Antennae secundi paris epimerum quartum explentes; flagellum 24-articulatum. 



Segmentum dorsale annuli primi trunci ante leviter bisinuatum. 



Epimera angustiuscula; anguli postici epimerorum posteriorum acuti, product!; 

 epimerum ultimum dimidiam partem articuli primi caudalis explens. 



Pedes prensorii graciles, glabriusculi; femora angustiuscula; ungulse primse brevi- 

 usculse, admodum incurvse, posteriores aliquanto majores. 



Pedes gressorii producti, graciles, parce spinulosi. 



Annulus primus caudalis maximam partem detectus. 



Annulus analis lingulatus, post obscure crenulatus, supra subaequatus. Pedes 

 anales longiusculi; ramus interior quam exterior multo longior et latior; ramus 

 uterque post attenuatus, obscure crenulatus. Long. 11.5 mm. SCHIOEDTE AND 

 MEINEET, Nat. Tidsskr. (3), XII, 1879-80, p. 371. 



