— ^6'2 — 



and that the record of the deptli in which S. compïanalus was found is 

 given at ioo-/i58 fatlioms. None of the very numerous littoral and shalloAV 

 water spécimens of tlie genus tliat liave been described sbow this character. 

 It is a character confined to spécimens from loo fathoms of water or 

 more. 



It might be suggested that the Talisman spécimens should be referred 

 to the x4tlantic species S. complanatus and not to S. tiliahis. I bave nothad 

 an opportunity of comparing the Talisman spécimens with the type spé- 

 cimen ofiS. complanatus, butthey certainiy do not agrée with the original 

 description of it given by Pourtalès. 



Errina (Labiopora) aspera Linnseus. 



This species, described by Linnaeus as Millepora aspera, is the species 

 on which Gray founded the genus Errina. 



The original spécimens on which the species was founded and some of 

 the spécimens in the British Museimi came from the Mediterranean Sea. 

 There can be very little doubt that it is a very variable species and the 

 spécimens obtained by the Talisman differ from others I bave seen in 

 having longer grooved spines and are therefore more hirsute in appearance. 

 One cannot help noticing the gênerai resemblance the spécimens bave 

 lo those from the Azores attributed to the species Errina Dabneyi, but 

 they differ from them , on doser examination , by the absence of scales pro- 

 tecting the gasteropores. It is probable however, as Moseley pointed ont, 

 that this character is not of much systematic value and the two species 

 may bave to be amalgamaled. 



The Talisman spécimens came from 633 and 698 mètres off Cape 

 Verde. 



Errina (Labiopora) antarctica Gray. 



This species, originally described by Gray as a Polyzoon [Porclla anlarc- 

 tica), was first found in 45 fathoms off the Falkland Islands and subse- 

 quently in 00 fathoms off the coàst of Chili. 



The spécimens sent to me were obtained off Cape Horn and agrée with 

 the description of the type. The coiour is Salmon-pink with the terminal 

 branches paler, and the grooved spines show a tendency to be arranged 

 in rows; but in tiiis respect, as might be expected, there is considérable 

 variation. The depth from which they Avere dredged is not staled. 



One of the spécimens included in this species is a very large example 

 of the species having an expanse of 1 4o mm. and a height of about 90 mm. 

 It is old, water-worn and encrusted with varie us marine growths so that 

 it is difficult to be quite certain that it belongs to the sanie species. 



