MARINE ISOPODA OF NEW ENGLAND, ETC. 



405 



scribed and figured by Heller on the head of P. arctica,\ and the flagel- 

 lar segments of both pairs of antennae distinguish it from P. costana 

 Bate and Westwood.J 



This species was dredged by Dr. Stimpson "on a shelly and some- 

 what muddy bottom in twenty fathoms oft' the northern point of Duck 

 Island," Bay of Fundy. It is rare south of Cai^e Cod, but was taken 

 in Vineyard Sound ! by the Fish Commission in 1871 ; also on St. George's 

 Bank!, in 110 fathoms, mud and sand; Gulf of Maine!, down to 115 

 fathoms; Bay of Fundy!, down to 80 fathoms on muddy, shelly, and 

 sandy bottoms; and off Nova Scotia!, 59 fathoms, pebbles, sand and 

 rocks, and at other localities as detailed below. It was dredged by 

 Mr. Whiteaves in 200 fathoms in the Gulf of Saint Lawrence, between 

 Anticosti and the mainland of Gasp6. 



Specimens examined. 



2081 



2082 

 13C5 



2083 

 2084 

 2087 



2088 



2086 



2095 

 2097 

 2091 



2092 

 2093 

 2094 

 2096 



2098 



Locality. 



Vineyard Sound 



Gulf of Maine, east from 



Cape Ann 140 miles. 

 Gulf of Maine, southeast 



J east from Cape Ann 13 



miles. 

 Gulf of Maine, ne 



Brown's Bank. 

 Georjro's Bank 



Gulf of Maine, off Ports- 

 mouth 22 to 28 miles. 

 Gulf of Maine 



20 

 of 



miles 

 Cape 



Casco Bay, 



southeast 



Elizabeth. 

 Gulf of Maine, 27 miles 



off I'ortland. 



Casco Bay , 



Gulf of Maine, 17 miles 



southeast of Monhegan 



Island. 



East])ort, Mo 



do 



Bay of Fundy, between 



Head Harbor and 

 Wolves. 



Off Head Harbor 



Bay of Fundy 



do 



Bay of Fundy, Grand 



Menan, New Bruns- 

 wick. 

 Southeast from Capo 



Sable 18 to 22 mUes. 



115 



53 



82 



110 



80-92 



65 



60 

 75-80 



77 



Bottom. 



Gravel 



Mud and stones 



Rocks and bar- 

 nacles. 

 Brown mud 



Soft mud . 



Mud, sand, and 



gravel. 

 Mud 



Brown mud . 



Mud. 



Sand and shells 



When col- 

 lected. 



,1871 



,1877 



,1878 



,1877 



,1872 



,1874 



,1874 



Aug. 12, 1873 



Aug. 26, 1873 



,1873 



,1873 



,1870 



—,1872 



Aug. 10, 1872 



Received feom- 



U.S.FishCom. 

 ...do 



do 



.do 



Packard and 



Cooke. 

 TJ.S.FishCom. 



.do 

 do 



.do 



do 

 -do 



A. E. Verrill.. 

 U.S. Fish Com. 

 ...do 



1872 ... do 



-,1872 do 



Aug. 10, 1872 ! ... do 



— , 1870 A. E. Verrill. . 



Sand, gravel, and j — , 1877 



stones. 



U.S.FishCom. 



jZi m 



Dry. 

 Alo. 



Alo. 

 Ale. 



Alo. 



Alo. 

 Alo. 

 Alo. 

 Ale. 

 Alo. 



Alo. 



Ale. 

 Ale. 



Ale. 

 Ale. 

 Ale. 



Ale. 

 Ale. 

 Ale. 

 Ale. 



Alo. 



Ptilanthura Harger. 

 Ftilantlmra Harger, Am. Jour. Sci., Ill, vol. xv, p. 376, 1878. 



Antennulae with the flagellum remarkably developed in the male, 

 multiarticulate; second and succeeding antennular segments provided 



t Denkschrift, Acad. Wiss. Wien., B. xxxv, p. [14] 38, pi. iv, figs. 9-12, 1875. 

 X Brit. Sess. Crust., vol. ii, p. 165, 1866. 



