EEYISED REPORT ON L.M.B.C. COPEPODA. 107 



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. 



Enlujdrosoma cicrvatum, Brady & Kob. PL XXII, fig. 1.) 



Length 0.60 mm. Found in mud fi'om Llanfairfechan 



and Garth shores at low water. Its minute size and its 



adherence to its muddy surroundings render it difficult of 



detection or examination. 



Platijchelipus littoralis, Brady. (PI. XXII, fig. 2.) 

 Length 1.20 mm. This striking species occurs in abun- 

 dance in mud taken at low water at Puffin Island, 

 Llanfairfechan, Garth Ferry and Hale, males and females 

 being about equally plentiful. 



Dactylopiis tisboides, Glaus. (PI. XXII, fig. 3.) 

 Length 1.90 mm. Frequently dredged off Puffin Island 

 and Port Erin, also found in tidal pools. It is easily 

 distinguishable by the first pair of feet (b) and by the 

 markings on the fifth feet (c). 



Bactijlopus stromii, Baird. (PI. XXII, fig. 4. a. b.) 

 Length 1. mm. Frequently found in tidal pools and 

 attached to Algse. It bears considerable resemblance to 



