oniscoidea. 727 



apex of the longer stylets. The antennae of the specimens were muti- 

 lated, and we are, therefore, in some doubt as to the number of joints 

 of the flagellum. The granules of the surface are hardly granules, 

 they appearing partly like wrinkles though raised, ranging longitudi- 

 nally across the segments of the thorax near their middle. 



PORCELLIO CHILENSIS. 



Levissime* granulatus. Caput bene transversum, a segmento sequente non 

 amplexum, processubus antero-lateralibus minutis, rectangulatis, fronte 

 parce arcuato. Antennae subtiliter Jiirsutiusculce, flagello vix breviore 

 quam articulus precedent, articulo flagelli \mo fere duplo hngiore 

 quam 2dm. Thoracis articulationes 5tce anticw fere recte transversa?. 

 Abdomen breve, non longius quam latum, segmentis 3tio 4 to btoque 

 lateribus salientibus et acutis, ultimo triangulate, subacuto, lateribus 

 excavato, latitudinem basalem longitudine fere cequante. Styli cau- 

 dales hirsutiusculi, abdominis longitudine, basi extremitatem abdominis 

 non attingente, ramo intemo bene exserto, crassiusculo, subulato, apicem 

 3-setigero, externo crasso acuminato phis triplo longiore. 



Very faintly granulate. Head much transverse, not imbedded in 

 following segment, antero-lateral processes minute, rectangular, 

 front sparingly arcuate. Antennae very minutely hirsute, flagellum 

 slightly shorter than preceding joint, its first joint nearly twice as 

 long as the second. Five anterior articulations of thorax nearly 

 straight transverse. Abdomen short, not longer than broad, third, 

 fourth, and fifth segments laterally salient and acute, last trian- 

 gular, subacute, sides excavate, breadth at base a little greater than 

 its length. Caudal stylets as long as abdomen, the base hardly 

 reaching to apex of abdomen, shorter branch exsert, a little stout, 

 subulate, having three setae at apex, outer branch stout, acuminate, 

 more than three times as long as the other. 



Plate 47, fig. 9 a, animal, enlarged; b, base of antenna; c, extre- 

 mity of antenna; d, extremity of leg of first pair in outline; e, caudal 



stylets. 



Valparaiso, Chili. 





