436 ON THE FAUNA AND BOTTOM-DEPOSITS NEAR THE SO-FM. LINE 



abundant on livinfr specimens of tlie same mollusc and of Vemis fasciata . 

 The deepest hauls (27 and 28) are characterised by large colonies of 

 Alcyonmm digitatum, as well as by the hydroids Sertidaria abictina and 

 Thuiaria articulata. 



Wandering species. As on the Eddystone shell gravel these are not 

 numerous, the only I'orms generally common being Echinus miliaris, 

 Porcellana lortgicornis, and a few Ebalia. Occasional specimens of 

 many other species are found, as will be seen from the list below. 

 The presence of several specimens of Fusus islandieus in hauls 105 

 and 107 is noteworthy, as this is the only locality in the neighbourhood 

 where the species has been found. Asterias glacialis was present only 

 in haul 60 (the most westerly haul on the ground), and has never been 

 taken at any point to the eastward of this {cf. p. 466). 



List of Species. Ground XVII. 



FORAMINIFERA. 



Truncatulina lobatula. On hydroids. 



PORIFERA. 



Cliona celata. Boring shells. 



Hydkozoa. 



Tubiclava cornucopiae. In 105 and 107, 

 on living Fectunculus 

 glycimeris and Venus 

 fasciata. 



Eudendrium rameuni. One colony in each 

 of the hauls 106 and 

 107 only. In 106 on 

 piece of old Chaetoptcrus 

 tube, in 107 on Peden 

 oj)ercularis shell. 

 ,, capillare. Occasional speci- 



mens on other hydroids. 

 ,, sp. A small species, not 



E. capillare. Not un- 

 common. 



Clytia Johnstoni. On other hydroids. 



Campanularia Hincksii. On other hydroids. 



„ verticillata. One colony in 



28 and one in 60. 



,, flexuosa. Common on Pec- 



tuHCulusglycimeriss,\\B\\s 

 in haul 107. 

 Lafoea dumosa. Recorded in 21 only. 

 Calycella syringa. 



Halecium halecinum. Occasional speci- 

 mens only. Jlost plenti- 

 ful in GO. 



,, Beanii. Very rare. 



Diphasia attenuata. In 21 only. 



,, tamari.sca. Young colonies in 

 28 only. 



Sertularia abietina. Common in deepest 

 hauls (7, 27, 28). Oc- 

 casional pieces only in 

 remaining ones. 

 ,, argentea. Occasional specimens 

 frequent. 



Hydrallmania falcata. One or two colonies 

 in each haul. 



Thuiaria articulata. In the two deepest 

 hauls, 27 and 28 only. 



Antennularia antennina. Not common. 

 ,, raniosa. In 21 only. 



Plumularia pinnata. In 43 and 61 only. 

 Scarce. 



Scyphistoma. In 107, on inner side of 

 Peden opercularis shell. 



ACTINOZOA. 



Alcyonium digitatum. Occasional small 

 colonies only, except in 

 hauls 27 and 28, the 

 two deepest dredgings 

 on the ground. 



Sarcodictyon catenata. Red variety not 

 uncommon on shells. 



Caryophyllia Smithii. Occasional speci- 

 mens on shells. Not 

 frequent. 



Epizoanthus incrustatus. Rare. Hauls 

 21 and 27 only. 



Adamsia palliata. Occasional specimens 

 with Eupagurus Pri- 

 deauxii. 



ECHINODERMATA. 



Cucumaria lactea. In 20 only, where 

 stones were present. 



Solaster papposus. Occasional sjieciniens 

 only. 



