34 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



This species is chiefly Atlantic, being known from the Bermudas, 

 from Florida, the Bahamas, Cuba, and Porto Kico. It extends 

 as far as Brazil, and, strange as it may seem, the Alhatros>i col- 

 lected it at the Hawaiian Islands at Station No. 3969. The species 

 is met with, however, on the Pacific coast of America, represented 

 by some sjjecimens collected by M. Diguet (Paris Museum), which 

 differ from those just described by the large chela, Avhich has the 

 l^alm obtuse, and the telson, in which the posterior angles are alto- 

 gether right angles and the inner spines are shorter (form h?'c/uspinis) . 



Other specimens fi'om the same region, collected by the Albatross 

 (form niexicuiiUH) have the basicerite slightly acute on the upper 

 border; the frontal projections are short, the rostrum shorter than 

 the basal article of the antennule; the ventral hook of the dactyls 

 is a little larger, and the posterior angles of the telson are sharper 

 than in typical specimens. These are very interesting differences, 

 because they are the same which serve to separate the two species of 

 the Maldives, S. hastilicrassu.s and S. aranfhitelsotiis, but here the 

 characters of the basicerite and of the telson are much more marked. 



Named for Mr. Charles Haskins Townsend, formerly naturalist 

 of the Albatross. 



Localities : 



North Carolina, 15 to 1(5 fathoms. Albatross Station Nos. 2280 

 and 2619. 



Florida: Key AVest (Union University collection); Anclote; 

 Straits of Florida, 56 fathoms. Albatross Station No. 2640; 

 west coast, 12.5 to 28 fathoms, Grampus Stations Nos. 5094 

 and 5100 and Fish Haivk Stations Nos. 7106, 7123 and 7124. 



Gulf of Mexico, 24 to 32 fathoms. Albatross Stations Nos. 2369, 

 2372, 2373 (type), 2387, 2389, 2390, 2405, 2406 (type of 

 foicnsemli produetus), 2407, 2409, 2410, 2411, 2412, 2414. 



Yucatan, off Cape Catoche, 24 to 27 fathoms, Albati'oss Stations 

 Nos. 2362, 2365, 2366. 



St. Thomas, Albatross, and Fish Hawk Stations Nos. 6079, 6080. 

 in 20 to 23 fathoms. 



Porto Rico, Mayaguez Harbor, 4 to 6 fathoms. Fish Hawk Sta- 

 tion No. 6065. 



Culebra, 15 to 15.25 fathoms. Fish Hawk Stations Nos. 6087 and 

 6093. 



Vieques, 15 to 16 fathoms, Fish Hawk Stations Nos. 6091 and 

 6092. 



Bermuda, G. Brown Goode. 



