Gatty Marine Laboratory, St, Andrews. 149 
Dona@onaDd, Red Sza. 
Anterior 
Opercula. Branchie. Peiglag Collar-bristles. Remarks, 
2nd December. 
None. Piemented, some 6 Basal web, 8-9 Buds in a few. 
tips enlarged. teeth (typical). 
2nd February, 
None. Tips of branchia 6 Typical. No buds. 
slightly enlarged 
bothin young and 
adults, 
May. 
None. es Fe 6 5 Many buds. 
September. 
CCM SN FAN | fe eth 6 eaaes me ome Young 
examples. 
Mapras Harpour, 
; Anterior . 
Opercula. Branchie. eee Collar-bristles. Remarks. 
None, Tips slightly en- 7-8 Typical. 
enlarged. 
Sypnry Harzovur. 
: Anterior . 
Opercula. Branchiz. oe * Collar-bristles. Remarks. 
None. Pigmented branchie, 9 Typical. Young had eight 
; no enlargement. thoracic bristles. 
(c) SrructTura.. 
‘In British Seas Filograna implexa has been at intervals 
under examination since 1863, and it was its structure that 
year in St. Andrews Bay which showed how closely it 
approached Prof. Huxley’s Protula dystert. Indeed, two years 
after, the English author admitted to the writer that there was 
no real distinction between them. Since that time numerous 
specimens from the east and west, north and south, from 
shore and from deep water, and from such localities as 
Norway, Shetland, the Hebrides, several stations (7) in the 
North Sea, Plymouth, the Channel Islands, the trawling- 
grounds of 1884, the deep water off St. Andrews Bay, the 
Moray Frith, the stations of the ‘ Porcupine,’ Naples, the 
stations of the ‘Triton’ and ‘Knight Errant’ from the 
Red Sea, India, Africa, Australia, and the French coast, &ec., 
have given a fair field for observation, especially when 
supplemented by living specimens. 
Fresh examples from Plymouth in sea water, as Huxley 
and others truly said, resemble corals in so far as the 
branchial fans of the avnelids project from the tips of the 
tubes as miniature flowers, the distal parts (branchize) of 
