330 
ZOOLOGIOAI4 lilTElUrUlUS, 
p. 979, Taken in tUe island of Cyprus, 4000 feet vip tko side§ of Mopiit 
Olympus. 
• Allorchestes paulensis, sp. n., Heller, Reiso Novara, p. 128, taf, ii, fig. 4, 
from the island of St. Paul. 
GAMMARIDiE. 
In the ^Transactions of the Scientific Society of Upsala*’ for 
1865 Prof. Lilljehorg has published an important and interest- 
ing monograph on the Lysianassina. Previously to entering into 
a consideration of the several species, Prof. Lilljehorg arranges 
the families of the Amphipoda generally in accordance with the 
arrangement in the classification given in the ^ British Sessile- 
eyed Crustacea/ with the exception of placing the family Orches- 
tidm after instead of before the Gammaridce, in which we doubt if 
he will be followed by any carcinologist. He then tabulates the 
subfamilies and genera comprised within the family G^mmai'idce 
that belong to the coasts of Sweden and Norway, and describes 
several new genera and species. 
Subfamily Lysianass][na, 
'The discovery on the coast of the Norwegian Finmark by 
Prof. Fries of a gigantic species (length 3 inches) of Am- 
phipod appears to have been the incentive to Prof. Lilljehorg to 
work out this extensive subfamily. 
The large northern specimens bear so close a resemblance to 
one that was captured some years since in the Straits of Ma- 
gellan, and described by Prof. Milne-Edwards under the name 
of Lysianassa magellanica^ that Prof. Lilljehorg has been in- 
duced to consider them as belonging to the same species. He 
has consequently entered into a very interesting dissertation on 
the resemblance that exists between the faunae and florae of 
the arctic and antarctic regions, from which it appears that 
whereas genera are frequently represented by species in each of 
the frigid latitudes, yet in no one instance have forms been re- 
cognized that can be identified as pertaining to the same species, 
except such as are known to have an intermediate or cosmo- 
politan existence. 
It may be that zoologists rely too emphatically upon distance 
as an element in the consideration of specific distinctions, and 
estimate as of specific value, in specimens from widely sepa- 
rated localities, differences which may be in variable characters 
only and which would not have so much importance assigned to 
them had they occurred in specimens obtained from the one 
region only. Crangon nigricauda, common in the San Francisco 
markets, has little in any fixed character by which to distinguish 
it from C. vulgaris of the European coasts. The closest inspec- 
tion of specimens of Caprella cequilibra from the United States 
of America ha§ not enabled us to distinguish it from speei- 
