22 Proceedings of the Royal Physical Society. 



west side of Holy Isle, especially off St 

 Molios' Cave, 15 to 20 fathoms. 



ECHINODEBMATA. 



Every species of Echinoderm mentioned in my former 



paper, with the exception of Palmipes placenta, was taken 



again this year. 



CEINOIDEA. 



Comatula 7'osacea in the Pentacrinoid state occurred fre- 

 quently during August, chiefly on Laminaria fronds, in from 

 10 to 20 fathoms. I had found no larval forms in 1879, and 

 this year none were seen in September. 



ECHINOIDEA. 



Spatangus purpureus (Miiller) ? 



Fragments off the east side of Holy Isle 

 in 30 fathoms, and off the south end of 

 Holy Isle in 20 fathoms. 



ASTEEOIDEA. 



Solaster endeca (Linn.). 



South-west of Holy Isle, 15 fathoms, and 

 off Whiting Bay, 20 fathoms. 



HOLOTHUEOIDEA. 



I. Pedata — 



Cucumaria hyndmanni (Thomp.). 



Off the south-west side of Holy Isle, 20 



fathoms ; off St Molios' Cave, 15 fathoms. 

 Ocnus hrunneus (Eorb.). 



Off the west side of Holy Isle in 20 fathoms. 

 Thy one raphanus (Diib. & Kor.). 



Off the west side of Holy Isle, 15 to 20 



fathoms. 



II. Apoda — 



Synapta inhcerens (Miill.). 



Off the south-west end of Holy Isle in 20 

 fathoms. 



