Decapod Crustacea of Bermuda, Part II. 2$ 



Comparative Measurements of S. aquinoctialis (No. 409?) and 

 S. brazilicnsis (No. 4100). 



Xunibcr 4097 4100 



Sex $ $ 



Total length 292 295 



Length to base of rostrum 250 _>45 



Length of carapace 114 90 



Length of abdomen to telson 105 100 



Length of telson 32 28 



Breadth of telson 51 46 



Breadth of carapace, in middle 96 84 



Breadth of carapace, anteriorly 87 82 



Breadth of carapace, between orbits 56 56 



Breadth of orbits, transversely 8 6.5 



Breadth between orbits and carapace border 14 11.5 



Breadth of sixth abdominal somite 59 53 



Length of sixth abdominal somite (medial) 16 17 



Length of antennse (total above) 53 62 



Length of second movable segment (total) 31 39 



Breadth of second segment 41 45 



Length of fourth antennal segment (above) 22 24 



Length of fourth segment (total below) 25 30 



Breadth of fourth segment 34 37.5 



This was first recorded from Bermuda by Hurdis. It was also 

 collected by Dr. T. H. Bean (t. Rathbun). It is frequently caught 

 in the lobster traps, in deep water among the outer ree-fs, and is 

 mostly used at once for. lobster bait. It is not commonly sold in 

 the markets at Bermuda, and is rarely used as food there. 



A good series of this species is in the collection from Dominica I. 

 (A. II. Verrill, 1906, Yale Univ. Mus.). They were taken in fish 

 traps in 5 to 100 fathoms. Its range is from the Bermudas and 

 Florida Keys to Brazil. Bermuda (Hurdis; T. H. Bean; Rankin). 

 Bahia, Brazil (Smith). Found in many of the West Indies, where 

 it is used as food, more or less, but is much inferior to the spiny 

 lobsters (Painilinis). Sold in the markets of Porto Rico (Rath- 

 bun ) . 



This species is closely related to S. bracilicnsis Rathbun, with 

 which it is associated at Dominica I., where a few of the latter, 

 some of which are now in the Yale Museum, were taken, with the 

 more common species, by A. Hyatt Verrill, in 1905-06. Possibly 

 both may also occur at Bermuda. 



S. brazilicnsis can be readily distinguished, when recently pre- 

 served, by its much brighter red or rosy colors, with the borders 



