CHAP. IV. ] THE CRUISES OF THE ‘ PORCUPINE’ iA 
flemingii group, but distinguished from LE. flemingii 
by characters which I must regard as of specific 
value, Hehinus microstoma, WYVILLE THOMSON, was 
common and of large size; and along with it many 
very beautiful brightly-coloured examples of the 
smallest form of L. norvegicus. 
The three species of the Echinothuride, Calveria 
hystrix, C. fenestrata, and Phormosoma placenta have 
as yet been met with in this region only, and they 
seem to have a wide distribution, stretching at about 
the same depth and temperature from the Féroe 
Islands to the south of Spain. I hear from Pro- 
fessor Alexander Agassiz that Count Pourtales has 
dredged fragments of one of the species under nearly 
similar circumstances in the Strait of Florida. 
Cribrella sanguinolenta was in thousands, of all 
colours—scearlet, bright orange, and chocolate brown. 
Several examples were found of a fine Scytaster, 
probably identical with the Asterias caneriensis of 
D’Orbigny, and if so having a southern distribu- 
tion. The curious little Pedicellaster typicus of 
Sars was not unfrequent ; a form which looks very 
much like the young of something else. One small 
specimen of Péeraster militaris came up from the 
Holtenia ground, but with the exception of Aséyo- 
pecten tenuispinus, which seemed to be more abun- 
dant than ever, the characteristic aretic echino- 
derms were absent. We took no examples here of 
Toxopneustes drobachiensis, Tripylus fragilis, -Ar- 
chaster andromeda, Clenodiscus crispatus, Astropecten 
arcticus, Huryale linkii, Ophioscolex glacialis, or 
Antedon escrichtii. It is very likely that there may 
be colonies in the ‘ warm area’ of some or of all of 
