CIROLANID.E. SPH/EROMID.E. 43 



most spines is emarginate, and furnished with numerous, 

 lono-, plumose seise. 



Dredged in Whitsand Bay, Plymouth, in 1903 (A.M. N.); 

 Ilfracombe (Stebling); St. Ives, 1905 (Vallentin !). 



ETRYDICE INERMIS, H. J. Hansen. (PL III. figs. 13 & 13*.) 



1890. Eurydice inermis, H. J. Hansen, 1. c. p. 366, pi. v. figs. 3-3/. 

 1904. Eurydice inermis, Norman, 1. c. p. 440. 



Telson with the extremity truncated, the truncated portion 

 measures less than one-third of greatest breadth of telson, 

 finely serrulated, without spines or markedly larger serra- 

 tions at the corners, wholly devoid of plumose setae, and only 

 bearing minute cilia together with scattered cilia of the same 

 character on the microscopically serrulated sides of the telson. 

 This differs also from the three former species in the small 

 size of the uropods (see figure 13) which fall considerably 

 short of the telson in length ; while in the other species they 

 are of about the same length as the telson. 



Dredged while staying at the Marine Laboratory, Plymouth, 

 in li'03, in the neighbourhood of the Eddystone Lighthouse. 

 The type specimens in the Copenhagen Museum, described 

 by Hansen, were procured from plankton taken oft' the 

 Lizard. 



Fam. 6. LIMNORIID.E. 



LIMNORIA LIGNORUM (Rathke). 



1867. Limnoria lifjnorum, Bate & Westwood, vol. ii. p. 351. 

 1897. Limnoria lignorum, G. O. Sars, 1. c. p. 76, pi. xxxi. 



Torquay (Stebbing); Falmouth Docks (Cocks <Sf A. M. N.). 

 Doubtless common all along the coast. 



Fam. 7. SPH^EROMID^E. 



SPH^EROMA SERRATUM, Leach. 



Mouth of the Tamar, the types (Leach) ; Plymouth, 

 Exmouth Estuary (A. M. J\ T .). 



SPH^ROMA RUGICAUDA, Leach. 



Plymstock, near Plymouth (A. M. N.) ; Torquay 

 (Stebbing). 



