11 



Wyville Tbmsom forfattede Skrift "The Depths of the Sea" 

 under Benævnelsen Amathia Carpenteri. 



Nylig er samme Form under den franske Expedition 

 fondet meget almindelig paa de større Dyb i Biscayerbugten. 



De to under vor Expedition erholdte Exemplarer op- 

 toges i Trawlnettet circa 20 Mil udenfor vor Vestkyst 

 (Stat, 10) fra et Dyb af 220 Favne. 



Dens bidtil bekjendte geografiske' Udbredning strækker 

 sig saaledes igjennem circa 20 Bredegrader. Hvis Stimp- 

 sons Art skulde vise sig at være identisk med vor. bliver 

 Udbredningen selvfølgelig endnu betydelig storre. 



Overalt er den kun fondet paa Dybder over 100 

 Favne, og den er derfor at betragte som en ægte Dybvands- 

 form. noget, der ogsaa paa Forhaand vil kunne sluttes af 

 enkelte Organisationsforhokl. navnlig de lidet udviklede Ørne 

 og disses lyse Pigment. 



De pbysiske Forhold, hvorunder den forekommer, synes 

 endelig at vise. at den er en mere sydlig Form. der alene 

 tilhører den tempererede Area. men er ganske fremmed 

 for den kolde. 



Subordo Anomura. 



Tribus Pterygura. 



Fam. Paguridæ. 



Gen. Eupagnrus, Brandt. 1851. 

 Middendorffs Sibirische Reise. 



2. Eupagurus tricarinatus, (Norman). 

 (Pl. I, Fig. 8—10). 



Syn: Pagurus tricarinatus, Norman, Last Report on dredging among 



tin- Shetland Isles. Report of the British Association for the 

 Advancement of Science for 1 8(>w, p. 264. 



Artscharacteristik. Legemet temmelig undersætsigt, 

 besat med spredte Børsteknipper. Panderauden i Midten 

 kun lidet fremspringende. Øinene aflangt kølleformige , 

 kortere end Panderauden. Fangarmene meget ulige, haa- 

 rede; bøire Arm meget større og kraftigere end venstre 

 med Ste Led (Vristen) temmelig tykt og tæt besat med 

 tornformige Tuberkler. Haanden bredt oval med 3 Længde- 

 kjoler. hvoraf de to ydre indtager Kanterne og er regelmæs- 

 sigt og grovt tandede. medens den 3die lober langs ad 

 Midten af den øvre Flade og er stumpere end de to ovrige. 

 Haandens Overflade mellem Kjølerne tydeligt indhulet og 

 kun forsynet med faa og stnmpe Knuder; Fingrene neppe 



Sir Wyville Tbomsou's well-known work, "The Depths of 

 the Sea."' under the name of Amathia Carpenteri. 



A short time since, the same form was met with on 

 the French Expedition, occurring very abundantly through- 

 out the great depths in the Bay of Biscay. 



The two specimens ohtained on the Norwegian Ex- 

 pedition were brought up in the trawl-bag, about 20 miles 

 off the west coast of Norway (Stat. 10). from a depth 

 of 220 fatboms. 



Hence, its geographical distribution as hitherto known 

 comprises about 20 degrees of latitude. Should Stiinpson's 

 species prove to be identical with oms. the distribution is 

 of course much more extensive. 



In every locality, this crustacean has been met with 

 in depths exceeding 100 fatboms, and must therefore be 

 regarded as a true deep-sea form, which could, indeed, be 

 presumptively inferred from certain characteristics of organ- 

 ization, in particular the slight development of the eyes 

 and their light pigment. 



Finally, the physical conditions under which the animal 

 occurs would apparently distinguish it rather as a southern 

 form, exclusively belonging to the temperate and wholly 

 unknown in the cold area. 



Subordo Anomura. 



Tribus Pterygura. 



Fain. Paguridæ. 



Gen. DExxpag-ni^iTS, Brandt. 1851. 

 Middendorffs Sibirische Reise. 



2. Eupagurus tricarinatus, (Norman). 



(Pl. I, figs. 8—10.) 



Syn. Pagurus tricarinatus, Norman, Last Report on dredging among 

 the Shetland Isles. Report of the British Association for the 

 Advancement of Science for 1868, ]>. 264. 



Specific Character. — Body comparatively robust, 

 beset with scattered fasciculi of bristles. Margin of front. 

 in the middle, but slightly projecting. Eyes oblong clavi- 

 form. shorter than the frontal margin. Chelipeds very un- 

 equal, eiliated; right arm much larger and more power- 

 fully developed than left. with the 5th segment (the 

 wrist) comparatively thick. and densely beset with spiniform 

 tubercles; hand broadly oval, with 3 longitudinal carinæ, of 

 which the 2 outer ones occupy the edges and are regularlv 

 and coarsely dentate, whereas the 3rd extends along the 

 middle of the lipper surfaee and is more obtuse than 

 the two others. Surface of hand between the carinæ 



