484 PROCEEDIN'GS OF THE ISTATIONAL MUSEUM vol. 91 



terior margins of the protogastric lobes. Areola wide, appearing 

 very squat. 



An orbital spine may be characteristic of this species ; the evidence 

 is not conclusive; the spine is often represented by a small spinule 

 or acute corneous scale scarcely to be recognized as an orbital "spine" ; 

 about a third of the specimens examined, mostly small, had no spinule 

 on either side, one-third had a definite spinule present on one or the 

 other side, while the remaining third had a spinule or correspond- 

 ingly sharp-pointed scale at the outer end of each orbit; whether 



b 



try 



Figure 54. — Aegla papudo, new species, male holotype: a, Dorsal view; b, lateral view of 

 anterior portion; c, sternum of third and fourth thoracic somites; d, inner ventral margin 

 of ischium of left cheliped; e, lateral view of second abdominal epimeron. a, b, natural 

 size; c-e, twice natural size. The rostrum is more Ungulate than is apparent in a (cf. 

 pL 27, C). 



armed with a spinule, scale, or granule or not, there is nearly always 

 a slight, sometimes abrupt but narrow, often lightly notched or in- 

 cised offset, usually no wider than the thickened border of the orbit, 

 between the outer end of the orbital margin and the inner slope or 

 margin of the anterolateral spine. Each of the three specimens be- 

 longing to the Philadelphia Academy, referred to in the remarks 

 appended to the "Distribution" of this species below, shows a definite 

 though small orbital spine on each side, separated from the corre- 

 sponding anterolateral spine by a narrow notch. 



Anterolateral angle of carapace forming a sharply acute, fairly 

 slender conical spine, which reaches to and a little past the posterior 

 border of the cornea, in some cases about to the middle of the cornea. 



Anterolateral angle of first hepatic lobe thick, lumpy, and blunted, 

 with a few corneous, scalelike projections, scarcely to be called 



