166 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



Length of male about 33 mm., width 2.8 mm.; female about 35 

 mm. by 3.2 mm. Number of segments 47 in a male, 49 in a female. 

 Males have the sixth and seventh segments broader than the others; 

 females distinctly constricted behind the head. 



Color in alcohol very dark brown, nearly black ; legs and antennae 

 slightly paler and more reddish. 



Clypeal foveolaB two on each side, one near the median sulcus, and 

 one widely removed, near the inferior margin. Vertex with sulcus 

 distinct, and with a band of fine vertical wrinkles under the margin 

 of the first segment; surface elsewhere smooth and shining. 



Eyes rounded triangular, of about 42 ocelli arranged in 7 ver- 

 tical curved rows, counted from behind toward the antennas, 9, 9, 

 8, 7, 5, 3, 1, and 8, 9, 8, 7, 6, 3, 1. 



First segment with the surface smooth, the emarginations very 

 broad and shallow and the raised margin narrow but very distinct 

 from the rounded lateral corner to behind the middle of the eye. 



Surface of segments smooth on the forebelt, sparingly punctate 

 on the midbelt, distinctly punctate along the shallow constriction, 

 smooth or very finely striolate longitudinally on the hind belt. 

 Lateral striations numerous below the pores, but not strongly de- 

 veloped. Surface nowhere distinctly reticulate as in Anelus. Poste- 

 rior segments smoother than the others, the transverse constrictions 

 and punctations becoming obsolete. 



Last segment, anal valves and preanal scale with surfaces smooth 

 and shining. 



Nineteen specimens, mostly adults, were collected about banana 

 stumps; some of the male specimens are smaller than the others, 

 but do not appear to differ in any other respect except that the sixth 

 and seventh segments are only very slightly enlarged. They seem to 

 have as many segments as the others, and all the segments are pro- 

 vided with legs except the last two, as in the adults. The copulatory 

 apparatus appears to be partially developed. 



GLOSSELUS NARESII (Pocock). 



Spirobolus naresii Pocock, Ann. and Mag. Nat. Hist., ser. 6, vol. 11, p. 252, 

 pi. 16, fig. 4. 



The copulatory apparatus of G. musarum shows such a marked 

 resemblance to that of Spirobolus naresii Pocock that the existence 

 of generic differences between the two species seem very improbable. 

 The ventral plate, as well as the anterior and posterior lobes, are of 

 the same general form, the most notable difference being that the 

 ventral plate of naresii is shown with a somewhat triangular rounded 

 apex, instead of emarginate. 



