562 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



and north to Labrador. In depth it extends down to 150 fathoms, 

 and probably much farther. 



MiCRODEUTOPUS MINAX Smith, sp. nov. (p. 479.) 



Antennula about two-thirds as long as the body ; hrst segment of the 

 peduncle stout, about as long as the head ; second segment a little 

 longer and much more slender ; third segment nearly half as long as the 

 first j flagellum slender, about a third longer than th^ peduncle; second- 

 ary flagellum very small, consisting usually of but one segment. An- 

 tenna about two-thirds as long as the antennula; ultimate and penul- 

 timate segments of the peduncle equal in length, and each fully twice as 

 long as the antepenultimate; flagellum scarcely as long as the last seg- 

 ment of the peduncle. Hands of the first pair of legs in the male greatly 

 developed ; carpus ver3^ large, scarcely longer than the breadth in the 

 middle ; superior margin strongly arcuate, the inferior angle produced 

 into a stout process opposed to the propodus, and the inferior margin 

 arcuate and armed distallj' with two teeth, a large and prominent one at 

 the base of the terminal process, the other small, obtuse, or even obso- 

 lete; propodus not more than half as long as the carpus, much longer 

 than broad, the inferior margin with two broad obtuse teeth; dactylus 

 stout, a little shorter fhan the propodus. Legs of the second pair with 

 the basal segment broad and squamiform; carpus elongated ; propodus 

 as long as the carpus and as broad as its distal portion, rectangular, 

 about two and a half times as long as broad; dactylus short and hooked 

 at the tip. In the female the hands of the first pair of legs are only 

 moderately developed ; carpus broad ; propodus scarcely as broad as 

 the carpus, rectangular, the palmary margin somewhat oblique, and the 

 inferior margin armed with a spine at the obtusely rounded inferior 

 angle. In the second pair the basal segment is not expanded but narrow ; 

 the carpus and propodus much as in the male, except that they are 

 clothed with numerous long, plumose hairs. The bases of the first and 

 second pairs of caudal stylets are armed with a long, slender, spiniform 

 process, arising from the distal end just below the bases of the rami. 

 The outer rami of the posterior stylets are a little longer than the inner. 

 All the stylets extend to the same point. 



Length, about 4™™. 



Long Island Sound and Vineyard Sound. 



Another species of Microdeutojms was collected in Vineyard Sound, 

 but it was not abundant. 



AUTONOE, species, (p. 415.) 



A species belonging apparently in this genus, as defined by Boeck, 

 was common in Vineyard Sound, living in tubes in masses of a compound 

 Ascidian {Ainouroncitim pcllucidum Verrill) in 3 to 8 fathoms. It is G or 

 7.1MU ijj length, and in life the antennuhe and antennae are obscurely 

 banded and si)ecked with pink; the body above, except upon the fifth 

 segment and the i)osterior part of the abdomen, is almost black, the 



