352 A. E. Verrill — Decapod Crustacea of Bermuda. 



emarginate, sfiving the front a somewhat four-lobed appeai'ance. 

 Median lobes more produced ; lateral lobes faint. Space between 

 the two fissures of the upper orbital margin slightly rounded, inter- 

 rupting the regular curve of the orbit ; external hiatus widely 

 V-shaped and deep. The inner suborbital angle forms a prominent 

 tooth ; a rather deep sinus divides this from the lobe which reaches 

 to the external fissure ; lower orbital margin produced. 



Abdomen of the male wider than in herhstii, outline concave, 

 penultimate segment widest at its distal end. Coxse of fifth pair of 

 feet in broad contact with third abdominal segment. Seventh seg- 

 ment of sternum shows but little. 



The marginal depression on the carpus near the articulation with 

 the hand is wide and deep. In some specimens the carpus is finely 



Figure 17. — Eupanopeus occiclentalis, nat. size. After Benedict and Eathbiin. 



granulate ; in others the granules are thrown up in slight rugae. 

 The hand varies in much the same way ; in some specimens finely 

 granulate ; in others, thrown up in rugse as on the carpus. In the 

 latter case the hand is always much smoother than the carpus in the 

 same specimen. Fingers brown or horn-color, shading to clear white 

 at the tips. There is a large tooth at the base of the dactyl of the 

 large hand. 



The color on the immovable finger does not extend beyond the 

 line of color on the movable finger ; while in Herhstii it usually 

 extends considerably beyond. 



This species closely resembles E. Herhstii, as shown by the above 

 description, and is easily confounded with it. The most important 

 distinctive character seems to be the much more distinct distal 

 groove on the carpus, but this varies. In Herhstii it is sometimes 



