28 Addis on E. Verrill, 



The general color of a dried specimen, above, is dull terra-cotta, 

 with the larger naked tubercles and marginal denticles orange-red. 

 The first abdominal segment has a median, large, round, red spot, 

 bordered laterally with orange-yellow, and a fainter reddish spot, 

 midway between the middle and the margin. The antennal joints 

 have a narrow border of bright orange-red ; teeth the same. 

 Under parts of body and antennae are dull pale yellow. 



Telson and uropods are finely mottled or speckled with orange 

 and yellow. Legs bright red, banded at both ends of each segment 

 with light yellow, so that there is a wide band of red in the middle 

 of each segment. Tips of the claws are blackish. Eye stalks are 

 bright red. They are very thick at base, narrower distally. The 

 cornea is smaller than the stalk and looks upward. 



Measurements of Bermuda Specimens of S. americanus 



Total length 



Length of carapace, without rostral lobe 75 



Breadth at anterior angles 68 



Breadth of carapace in middle 73 



Breadth between orbits 48 



Diameter of orbit 6 



Orbit to outer angle 8 



Length of rostral lobe 9 



Length of first antennular segment 



Length of second antennular segment 8 



Length of third antennular segment 15 



Length of antennal segments, collectively 38 



Length of second movable antennal segment 22 



Breadth of second segment 3 2 



Length of exposed part of last segment 12 



Breadth of last segment 3 



Length of leg of first pair, total 



Length of leg of first pair, carpus, below 



Length of leg of first pair, propodus, below 



Length of leg of first pair, dactylus, below 



Height of leg of first pair, propodus 



The American form, which hitherto has been identified with 

 S. latus* of the Mediterranean, appears to me to be a distinct 

 species, or at least a well-marked subspecies. 



*Scyllarides latus (Latreille). 



Scyllarus latus Latreille, Hist. Nat. Crust., vi, 182, 1803; Tabl. Encyc. 

 Meth., xxiv, pi. cccxiii, 1818. Guerin, Icon. Regne. Anim., pi. xvii, 



