REVISED REPORT ON L.M.B.C. COPEPODA. 201 
9) being more than double the length of the first. The 
inner branch of all four is very short, two jointed, and 
terminated by a long seta; the outer branch of each is much 
longer than the inner and is three jointed, it being in the 
fourth feet at least six times the length of the inner 
branch. The fifth feet (fig. 10) are each composed of 
three inner spines, the central one plumose, then a long 
single segment with spinous apex, and the foot terminated 
by a short segment bearing a long seta. Caudal stylets 
(fig. 11) long and narrow with one outer seta near apex 
and a central inner seta, and long terminal spines. Several 
specimens all females of this striking species were taken 
by the mud dredge at a depth of 39 fathoms about 12 
miles out from Port Erin. It is easily recognised by the 
anterior and posterior dorsal spines, its stout build and 
long diverging caudal stylets. 
Einhydrosoma curvatum, Brady & Rob. Pl. XXII, fig. 1.) 
Length 0.60 mm. Found in mud from Llanfairfechan 
and Garth shores at low water. Its minute size and its 
adherence to its muddy surroundings render it difficult of 
detection or examination. 
Platychelipus littoralis, Brady. (Pl. XXII, fig. 2.) 
Length 1.20mm. This striking species occurs in abun- 
dance in mud taken at low water at Puffin Island, 
Lilanfairfechan, Garth Ferry and Hale, males and females 
being about equally plentiful. 
Dactylopus tisboides, Claus. (Pl. XXII, fig. 3.) 
Length 1.90 mm. Frequently dredged off Puffin Island 
and Port Evin, also found in tidal pools. It is easily 
distinguishable by the first pair of feet (0) and by the 
markings on the fifth feet (c). 
Dactylopus strom, Baird. (Pl. XXII, fig. 4. a. b.) 
Length 1. mm. Frequently found in tidal pools and 
attached to Alew. It bears considerable resemblance to 
