352 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



April 15, 1905; J. Boeke; 1 male (returned to sender), 1 fathom; 

 among algae; July 9, 1905; J. Boeke; 1 young female (returned to 

 sender). Bay of Caracas; 3 fathoms; October 21, 1905; J. Boeke; 1 

 male (42951). Spanish Water; April-May, 1920; C. J. van der Horst; 

 1 male, 1 young (56890), toward serrata. 



Bonaire; lac (lagoon); shallow water (}^ fathom); in mangroves; 

 J. Boeke; 1 male, 1 female (returned to sender). 



Trinidad; 1884; Albatross: Shore; January 20-February 2; 3 males, 

 1 female (15657), /onna serrata. Monos Island; January 30-February 

 2; 1 young (59492), /orwa serrata. 



Cayenne, French Guiana (Brit. Mus.), 



BRAZIL. — Rio Parahyba do Norte, Cabedello, on mangroves; 

 1899; A. W. Greeley, Branner-Agassiz Expedition; 2 males (Stanford 

 Univ.). 



Ilha Governador, Bay of Rio de Janeiro; outside mouth of river; 

 under rocks, sponges, and bunches of bryozoa; September 1, 1925; 

 W. L. Schmitt; 3 males, 3 ovigerous females (59463). 



State of Santa Catharina; 1919; H. Luederwaldt; 2 immature 

 females (Mus. Paulista), /orma serrata. 



BERMUDAS.— W. N. Rankin collector; 1 male (25824), with 

 abdomen not constricted between fifth and sixth segments. 



PANOPEUS CONVEXUS A. Milne Edwards 



Plate 158, Figure 2 



Panopeus convexus A. Milne Edwards, Crust. R6g. Max., 1880, p. 316, pi. 58, 

 fig. 5, 5a (Pilumnus convexus on explanation of plate, by error) (type-locality,. 

 Chile; type in Paris Mus.). 



Eupanopeus convexus Rathbun, Bull. Lab. Nat. Hist. State Univ. Iowa, vol. 4, 

 1898, p. 273. 



Diagnosis. — Carapace high in middle, relatively smooth. Front 

 narrow. First lateral sinus shallow, third tooth blunt. A secondary 

 blunt tooth or prominence on carpus below inner tooth. 



Description. — Carapace remarkable swollen in both directions, from 

 the center down to the level of the lateral teeth, but more swollen 

 longitudinally. Regions fairly well marked. Surface almost smooth 

 to the naked eye, but fine granules are to be seen with the lens; the 

 only noticeable line of granules is opposite the last lateral sinus where 

 on the epibranchial region a transverse line runs inward and slightly 

 forward. Front narrow, deflexed, most advanced near the middle; 

 outer end not dentiform, bluntly rounded, its anterior margin trans- 

 verse. First antero-lateral tooth small, blunt; second lobiform; inter- 

 vening sinus shallow, rounded. Third, fourth, and fifth teeth with 

 arcuate outer margin; third a little narrower at base than fourth,^ 

 suboblong, with straight anterior margin, tip very blunt; fourth and 

 fifth with concave anterior margins and acute tips; fifth directed 

 obliquely forward. 



