502 ME. R. I. POCOCK ON THE 



side of the middle line, wliieh is deep black ; tbe dark colour 

 o£ tlie dorsal surface generally fading into flavous at the sides ; 

 legs bright flavous ; antennae fusco-annulate. 



Head smooth, pores 2+2, sulcus mesially interrupted; eyes 

 orbicular, separated by about four diameters ; antennce short, 

 scarcely surpassing the collum. 



CoUum laterally rounded, with a weak marginal sulcus ; the 

 rest of the segments smooth behind, the transverse sulcus 

 obsolete or nearly so dorsally ; a transverse sulcus in front of it, 

 rising on a level with the pores, as in M. monilicornis, but weaker, 

 aud sometimes incomplete mesially ; the area in front of this 

 secondary sulcus adorned with many shorter fine transverse or 

 oblique sulci, which below are continuous with the longitudinal 

 sulci of the posterior portion of the segments. Tores small, 

 situated in front of the position of the normal sulcus. 



Sterna striate. Scobina extending at least to the 30th 

 segment. 



Anal somite compressed; tergite produced into an angular 

 process which does not surpass the valves. Sternite triangular ; 

 valves lightly but widely depressed. 



IJeffs as in H. monilicornis. 



Number of segments 48-52. 



§ . Length up to 62 mm., width 5*0 mm. 



c^ . „ „ 60 mm., „ 4*5 mm. 



Locality. St. Lucia (Fond de Jacques). 



Collected by G. A. Eamage. 



Ehinocbicits akgttintjs, sp. n. 



Closely allied to H. serpentinus. 



Colour almost exactly as in i2. monilicornis, the segments 

 being piceo-olivaceous and posteriorly widely bordered with pale 

 olivaceous, the anal tergite, however, is only narrowly bordered 

 with flavous, while the valves are more widely flavous posteriorly. 

 On the segments, the transverse sulcus is almost entirely 

 obsolete dorsally and not deep as in i2. monilicornis ; the sulcus 

 in front o£ it, however, is distinct, and rises from the level of the 

 pore ; the area in front of the sulci is adorned with transversely 

 or obliquely set short striolse above and at the sides. 



The anal somite is small; the tergite acutely angled, but 

 scarcely covering, and certainly not surpassing the valves. 



Sexual characters as in B. monilicornis. 



