Decapod Crustacea of Bermuda, Part II. 99 



The specimen from Fort Macon differs somewhat from the 

 type-form though nearer that than to var. elongatus in most 

 respects. 



Synalpheus fritzmulleri var. carolinensis Ver. new. 



PLATE XXII, FIGURE 6. PLATE XXXIX, FIGURES i-id. 



The following description is from a North Carolina specimen. 

 The frontal spines are very acute. The rostrum is a little longer 

 than the ocular spines ; seen from above it is compressed, narrow, 

 spiniform, very acute, but seen in profile it is proximally broadened 

 into a small vertical plate ; its point reaches about to the middle of 

 the first antennular article. Ocular spines are conical and swollen 

 at base, with acuminate and sharp tips. The antennules are rather 

 slender. The basal spine is slender, acute, and reaches to or 

 beyond the middle of the second article. 



The carpocerite is slender, cylindric, and exceeds the antennular 

 peduncle by more than the length of the last article. Its scapho- 

 cerite is narrow, its spine is rather slender, not as long as the 

 carpocerite, about equal to antennular peduncle; the scale is 

 shorter and very narrow. 



The basicerite is short, two-spined ; the lower spine is about as 

 large as the rostrum, and extends not quite so far as the stylocerite, 

 or about to end of first article ; the upper spine is about one-third 

 as long and about the same shape; the interval between them is 

 U-shaped. The third maxilliped is long, rather slender; the tip 

 has about nine slender unequal spines ; exopod has a large brush 

 of plumose hairs. 



The large chela is long-ellipsoidal or slightly ovate, only a little 

 swollen proximally and not projecting back of articulation, which 

 is nearly central ; slightly compressed in a dorsal view ; distal 

 dorsal margin has no prominent denticle, at most only a minute 

 obscure tubercle ; inner articular margin has two small tubercles ; 

 fixed finger short, subacute, apex channelled, shorter than dactyl ; 

 dactyl is strongly compressed in a dorsal view; strongly arched 

 distally, tip acute ; inner edges plane ; plunger elongated. 



Carpus is short, small, cup-shaped; merus rather short, tri- 

 quetral, with the two distal angles dentiform. Smaller chela is 

 much smaller, similar in form, relatively longer (pi. 39, fig. i); 

 width to length about i : 1.65 ; dactyl is about as long as width of 



