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284 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Hyperoche kroyert was taken only in the Gulf of Maine where it _ 
occurred at twelve stations, all near shore, as follows:— 
Station Fathoms Specimens Stations Fathoms Specimens — 
10057 15-0 10 10088 80-0 1 
30-0 6 10097 80-0 i 
10058 40-0 17 10098 18-0 6 
10085 20-0 3 10100 40-0 7 
10086 20-0 + 10104 50-0 5 
10087 15-0 5) 10105 50-0 3 
30-0 1 
The numbers of specimens concerned are so small that they do not 
show anything about bathymetric distribution. | 
The few captures of Hyperia medusarum are likewise from the Gulf 
of Maine, and so are most of the Hyperia galba, which is consistent 
with the distribution of their medusan host Cyanea. But one speci- 
men of H. galba was taken in the Gulf Stream (Station 10071, 190-0 
fathoms). 
The remaining hyperiids were all taken either in the Gulf Stream, 
or where Gulf Stream water was in evidence: they are all visitors from 
the south, or at least from the warmer parts of the Atlantic, and 
do not belong to the permanent plankton of the coast water. 
Vibilia was taken at all the stations outside the continental shelf, 
and twice over the outer part of the shelf; curiously enough, however, 
it was not encountered in the Gulf Stream tongue south of Delaware 
Bay. The depths of the captures are:— 
Station Fathoms Specimens Station Fathoms Specimens 
10061 70-0 i 10071 20-0 2 
10064 175-0 10 190-0 12 
10065 20-0 3 10076 20-0 a 
Thus most of the specimens came from deep hauls, none from the 
surface. | 
Tyro was taken only once, in the Gulf Stream, one specimen, twenty 
fathoms, Station 10071. 
The two species of Phronima were likewise restricted to the Gulf 
Stream, and to the outer edge of the shelf, except for a single specimen 
of sedentaria near Cape May (Station 10080). Though the two 
agree geographically sedentaria was living deeper than atlantica as 
shown in the following table of captures. 
