186 LIVERPOOL BIOLOGICAL SOCIETY. 
last preceding taken from the branchial sac of Asczdia 
plebera. 
Botachus cylindratus, Thorell. 
Found by Professor Herdman in the branchial sacs of 
Ascidia mentula and Ascidia plebera, from the Isle of Man. 
About a dozen females were found, but only one male. 
Family. HARPACTICIDA. 
Fictinosoma spuupes, Brady. 
Ectinosoma melaniceps, Brady and Robertson, ‘‘Ann. and Mag. Nat. 
Hist.,” p. 130 (1873). 
Taken by tow-net, between Liverpool and Isle of Man, 
from ‘‘Weathercock,’ August, 1886. Found in con- 
siderable numbers in mud dredged from Soderick Bay, 
Isle of Man, 1887; also from mud gathered at low water 
at Lianfairfechan, on the Welsh coast opposite Puffin 
Island. 
Ectinosoma erythrops, Brady. 
A single specimen of this species was taken by tow-net 
off Puffin Island, January, 1888. 
Brady typica, Boeck. 
Found by Mr. W.S. McMillan, F.L.S., in quantities in 
mud from the shore at Penmon Point, Anglesey; also in 
mud from Llanfairfechan shore. In material dredged at 
Port Soderick, Isle of Man. 
Tachidius brevicornis, Muller. 
In brackish water at the mouth of the Alt, near Formby, 
May, 1888; also in mud taken from the shore at Penmon 
Point. 
Tachidius littoralis, Poppe. 
Common in mud from Penmon Point, Anglesey, and 
from Lilanfairfechan shore. 
