ATLANT. DEEP-SEA EXPED. 1910. VOL. III]. 



SPONGIA. 



Asconema setubalense Saville Kent. 



PI. I, fig. 4. 



Vide litter: 12 a. 



St. 102. One specimen. 



From this station there is one specimen of a little 

 bag-shaped sponge, 5 cm. long and 3.5 cm. wide, open 

 at both ends, apparently a piece torn from a larger sponge. 

 Its feltlike consistency and characteristic spiculation prove 

 beyond doubt that it is an Asconema. All the different 

 kinds of di acts (op. cit. pi. XXI, fig. 7 — 10) forming the paren- 

 chymal interlacement, the dermal and gastral hexacts 

 and pentacts have been observed. Though we have 



not found all the four forms of rosettes generally occur- 

 ring in Asconema setubalense— the great discohexasters 

 (op. cit. fig. 1 1) and the oxyhexasters with brushlike secon- 

 dary rays (op. cit. fig. 6) being absent— we do not hesitate 

 to refer the fragment to this species. Specimens wanting 

 the great discohexasters have previously been recorded by 

 the "Albatross" (var. pauperata Schulze 29 p. 26), and spe- 

 cimens lacking also other miscrosleres are known from 

 off the Azores 599—1600 m. (41 p. 41). The specimen at 

 my disposal seems to represent a variety between pauperata 

 and the simpler variety from off the Azores. 



Geographical distribution: Asconema setubalense Sav. 

 the Atlantic, where it seems to have a wide range: 



Kent has hitherto only been recorded from 



Date 



Locality 



Depth 



Bottom deposit 



Name of expedition or authority 

 Literature 



1870 



Off coast of Portugal 



? 



410 m. 



598—786 m. 



300 m. 

 927 m. 

 1267 m. 

 861 m. 



1385 in. 



1550 m. 



1600 m. 



599 m. 



642 m. 

 1170 m. 

 532 m. 



185 m. 



Rocky ground 



Gravel, rock 

 Gravel, black mud 

 Stones, mud, shells 



Sand, stones 



Arenaceous mud 



Coarse sand 



Sand 



Sand 



Sand, ooze 



Stones and sand 





1885 



Off coast of Morocco 



Sav. Kent: On the "Hexactinellidar 

 etc.. Monthly Micr., Journ. Nov. 

 p. 241. 



"Talisman" & "Travailleur". 



1887 



N. W. of Scottland .. 



p. 285. 

 "Triton" (st. 4) John Murray vide: 



1886 



t 

 Azores: 

 Lat. 43' 57' N. long, 9 U 27' W 



Rep. Challenger, vol. XXI p. 116. 



1887 

 1887 

 1888 



1895 

 1896 

 1896 



Lat. 38" 23' 45" N. long, 30" 51' 30" W... 



Lat. 46" 4' 40" N. long, 49" 2' 30" W 



Lat. 38° 48' 30" N. long, 30" 19' W. 



Lat. 37" 42' 40" N. long, 25" 05' 15" W. 



Lat. 38" 20' N. long, 28" 04' 45" W. 



Lat 39" 11' N. long, 20° 24' 15" W 



E. Topsent: Result, camp, scient. 

 Prince de Monaco. Fasc. II. Spong, 

 de L'Atlant. Nord. 1892 p. 27. 



"Princesse Alice" 

 E. Topsent: Result, camp, scient. 

 ' Prince de Monaco. XV. Spong. 

 des Acores. 1904, p. 40. 



1897 

 1899 



Lat. 38" 52' 50" N. long, 27" 23' 05" W. 



East coast of America: 

 Lat. 40" 02' N. long, 68" 50' W 





Lat. 40" 01' N. long, 68" 54' W 



i "Albatross" 

 F. E. Schulze: Amerik. Hexact. 





Lat. 40" 03' N. long, 68" 56' W 





Lat. 42° 49' N. long, 68" 50' W 



nach dem Mater, d. Albatross Exp. 





Lat. 44° 35' N. long, 57" 20' W. ... 



J 1899, p. 25. 





Lat. 41" 54' N. long, 65" 48' 35" W 





1910 



Lat. 60" 57' N. 4" 38' W 



1098 m. 



Blue mud 



"Michael Sars" 









a 3 



Chonelasma sp.P 



PL I, fig. 5 

 Vide Litter: 26 pag. 320. 



St. 10. One specimen. 



The specimen obtained by the "Michael Sars" was 

 —A cm. long mamelliform piece, somewhat irregular 



ARNESEN - 2 



apparently representing an entire individual. The expanded 

 base has most likely been detached directly from the 

 bottom. The sponge is hollow, and the cavity was filled 

 with mud containing a small annelid. The surface exhibits 

 irregular, rounded hillocks and indistinct foldings. The 

 openings of the incurrent and excurrent canals are irre- 



