^Albatross' Dr edgings in 1883. 181 



flattened mass beneath the cephalothorax, are apparently held 

 together bj some glutinous secretion, and are attached princi- 

 pally to the third pair of pereiopods (antepenultimate cephalo- 

 thoracic appendages). This apparently confirms Bell's 

 statement in regard to the egg-carrying of Thysanopoda 

 Coucliii^ which is, as far as I know, the only published obser- 

 vation of egg-carrying in any of the Euphausidte. 



The Amphipoda from deep water are comparatively few in 

 number and have not yet been carefully examined ; but among 

 them is one specimen of the gigantic Eurysthenes gryllus, 

 Boeck {Lyaianassa MageUanica, Milne-Edwards), probably 

 the largest of all known Amphipoda. This specimen, which 

 is over 4^ inches long, and very stout in proportion, was taken 

 in 1917 fathoms, north lat. 37° 56' 20", west long. 70° bV 

 30". The few previously known specimens came from Cape 

 Horn, Greenland, and Finmark, and have apparently all been 

 taken from the stomachs of fishes. This species and its 

 occurrence in the extreme arctic and antarctic seas have been 

 much discussed and form the subject of a long memoir by Lill- 

 jeborg ; but the apparently anomalous distribution is explained 

 by its discovery in deep water off" our middle Atlantic coast. 



The great differences in depth through which some of the 

 species range is worthy of notice, several species ranging 

 more than 2000 fathoms, as shown in the list, given further 

 on, of species taken below 2000 fathoms. I have not yet 

 noticed distinct varietal differences due to depth in any 

 species, though there is often a very marked change in the 

 associating species. A very remarkable case is that of Para- 

 pagurus pilosimanus^ which was taken at fifteen stations, and in 

 250 to 640 fathoms, by the 'Fish Hawk' and ^ Blake,' in 1880- 

 81-82, and in great abundance at one station in 319 fathoms, 

 where nearly 400 large specimens were taken at once. All 

 these earlier specimens were inhabiting carcincecia of Epizo- 

 anihus paguripliilus. In the dredgings last summer the 

 Parapagurus was taken at seven stations ranging in depth 

 from 1731 to 2221 fathoms ; but none of the specimens were 

 associated with the same species of Epizoanthus^ some being 

 in a very different species of Epizoantlius^ others in naked 

 gastropod shells, and still others in an actinian polyp. 



A striking characteristic of the deep-sea Crustacea is their 

 red or reddish colour. A few species are apparently nearly 

 colourless, but the great majority are of some shade of red or 

 orange, and I have seen no evidence of any other bright 

 colour. A few species from between 100 and 300 fathoms 

 are conspicuously marked with scarlet or vermilion, but such 

 bright markings were not noticed in any species from below 



