ASTEROIDEA DREDGED DURING CRUISE OF H.M.S. "TRITON." 163 



spinelets on the lower rows of plates are comparatively long and well developed. 

 The character of the alternate prominent adambulacral plates is already dis- 

 cernible, although not more than one or two ambulacral spinelets are present 

 on each. 



The madreporiform body is outside and external to the interradial plate, and 

 almost in the ravine of the interbrachial angle. The anal aperture is excentral, 

 and situated between the dorso-central plate and an interradial plate, standing 

 in the right posterior interradius when the madreporiform body is placed in the 

 right anterior interradius. 



12. Asterias Miilleri, Sars. 



Station 5. August 10, 1882. Lat. 60° 11' to 60° 20' N., long. 8° 15' to 



8° 8' W. 

 Depth, 433 to 285 fathoms ; bottom temperature, 43° -5 to 40° -8 Fahr. 



II. Station-Lists. 



The following lists show the species associated at the respective stations : — 



Station 1. August 4, 1882. Lat. 59° 51' 30" K, long. 6° 21' W. 

 Depth, 240 fathoms; bottom temperature, 47 0, 6 Fahr. 

 Cribretta oculata. 



Station 2. August 5, 1882. Lat. 59° 37' 30" N., long. 6° 49' W. 

 Depth, 530 fathoms; bottom temperature, 46° 2 Fahr. 

 Pteraster militaris. 



Station 3. August 8, 1882. Lat. 60° 39' 30" K, long. 9° 6" W. 

 Depth, 87 fathoms ; bottom temperature, 49°o / Fahr. 



Hippasteria plana. 



Luidia ciliaris. 



Station 5. August 10, 1882. Lat. 60° 11' to 60° 20' N., long. 8° 15' to 8° 8' W. 

 Depth, 433 to 285 fathoms ; bottom temperature, 43° 5 to 40° 8 Fahr. 



Rheg aster Murrayi. 



Asterias Miilleri. 



Station 9. August 23, 1882. Lat. 60° 5' N., long. 6° 21' W. 

 Depth, 608 fathoms ; bottom temperature, 30° Fahr. 



Pteraster militaris var. prolata. 



Archaster tenuispinus. 



