108 
ramus of the uropoda is less robust and scarcely longer than the inner, the 
terminal joint of which has 3 lateral spinules, whereas only 2 are found in 
the typical form. 
The figures given on the last plate of the adult male are from'specimens 
kindly sent to me by Mr. Th. Scott, who collected them in the Firth of Forth. 
There cannot be any doubt that this is in reality, as suggested by the above- 
named distinguished zoologist, the male of D. Rathlcei: and I think I am right in 
considering it to belong to the present variety, which seems to be that exclusively 
found off the British Isles. As seen from the figures, it is of a very slender 
form, and on the whole resembles the males of other species of the genus, 
having a well-marked serrated keel along the sides of the carapace, and the caudal 
segments partly spinulous. It is, however, easily proved to belong to the present 
species by the structure of the several appendages. 
Occurrence. — This variety seems to he much more generally distributed 
off the Norwegian coast than the typical form, as it occur from the Christiania 
Fjord to Vadso, and in some places in great profusion. 
Page 71. Leptostylis villosa. 
Distribution. — Three well-marked female specimens of this form were 
sent to me from Mr. Th. Scott, who collected them in the Firth of Clyde. 
Page 74. Pseudoeuma eerearia. 
Occurrence. — I found this form last summer in great abundance 
off the Jsederen coast, outside Sirevaag, in a depth of 6 —10 fathoms, fine 
sandy bottom. 
Page 76. Pseudoeuma similis. 
Occurrence. — This form, which had previously only been observed at 
Skudesnses, occurred not unfrequently, together with the preceding species, outside 
Sirevaag. 
Distribution. — According to a communication from Mr. Th. Scott, some 
specimens of this species were taken by him at the “seaweed limit” of the 
estuary of the Clyde. 
Page 77. Petalosarsia deelivis. 
Distribution. — Firth of Forth, Moray Firth (Th. Scott). 
Page 84. Campylaspis rubicunda. 
Distribution ■ — Firth of Forth, Firth of Clyde, Moray Firth, Loch 
Fyne (Th. Scott). 
