= 
he Seno o a oe nae e eet Stroemii, Thelepus 
EXPLORATION OF THE GULF OF MAINE. 153 
nacious soft blue mud, we found indications of an intermixture 
of the abyssal fauna characteristic of depths in the north Atlan- 
tic between one hundred and one thousand fathoms, with a tem- 
perature of about 39° Fahr. At the first station (36) examined, in 
one hundred and forty-two fathoms (temperature 39° to 42°) a 
large Geryon of a deep reddish flesh color occurred, having more 
spines on the carapace than in G. tridens, and with eggs. Associ- 
ated with this arctic crab occurred two fragments of a true cup- 
coral allied to Caryophyllia. On submitting the specimens to 
Count Pourtales, he at once pronounced it a species of De tocy- 
athus, and on comparison Fig. 53, 
Li, 
ey. 
Deltocyathus Agassizii. 
Poora from depths va- 
rying from sixty to -three 
hundred and twenty-seven 
fathoms þetween Cuba and 
Florida, our specimens did 
not differ specifically. Pourtales remarks (p. 15) that ‘this 
“coral has been pronounced by Dr. Duncan, identical with the 
fossil species D. Italicus, and though closely allied is yet 
ith 
readily distinguished by the costæ and other characters.” 
the crab and coral occurred Amphiura Otteri of Ljungmann, 
dredged by the Swedish Josephine expedition in five hundred and 
fifty fathoms off the coast of Portugal; it agrees perfectly, I am 
told by Prof. Verrill, with the description of that species. It also 
occurred in the one hundred and seventeen fathom station near by. 
Such facts as these, the occurrence of an abyssal form of sand- 
‘star on opposite sides of the Atlantic, and of the Deltocyathus, 
seem to favor Lovén's theory of a uniform fauna throughout the 
i 
bottom of the deeper parts of the Atlantic.* At the same station 
` occurred Schizaster fragilis and certain shells, among them Dacry- 
dium vitreum, and several worms. The olier station (37) was ten 
; i! aaa A ` ‘ ae i 
wee a 7 ies found at station 36. Those with * were found at 
87 also, Crestine *0e eryon sp., Hyas ara araneus, Scalpel orms, ` ingens, 
Lumbriconerers fragilis, Nothria opalina V, * Spiochetopterus? (tubes) * Sternaspis fossor, Am- 
cincinnatus. 
Bat 
