610 E. J. ALLEN. 



they do not attain the size of the large globular papillae oi the 

 littoral form. This deeper water form approaches the L. rarispina 

 of Malmgren, and was so entered in our previous lists. The spines 

 do not, however, attain the length indicated in Malmgren's figures 



(Nordiska Hafs-Annulater, 1865. Tafl. VIII. figs. 2 and 2c). 



With regard to the name of the species, Fauvel (loc. cit.) points 

 out that Savigny's L. floccosa is described by its author as having 

 sixteen pairs of elytra, and his description is too incomplete to 

 fix even the genus to which it belongs. The first recognisable descrip- 

 tion of the present form is by Grube wdtli the specific name extenuata. 

 By this name it has been generally referred to in the literature or 

 by its later synonym L. propinqua Malmgren. 



The species referred to in previous lists by Hodgson and Elwes 

 from Plymouth and Torquay {loc. cit.) as L. extenuata Grube, is I 

 believe L. Elisahethce Mcintosh. 



Lagisca ELISABETHS McIntosh : Mon. Brit. Ann. I. 2, 1900, p. 303. 



Plymouth. On the shore at Wembury Bay and Rum Bay, not 

 uncommon. Probably the form referred to by Hodgson (Journ. M.B.A., 

 voL 6, 1900, p. 247) as L. extenuata Grube. 



Torquay. Very common in roots of Laminaria and under 

 stones {Elwes, Journ. M.B.A., vol. 9, 1910, p. 59). Southern has 

 examined specimens from Torquay sent by Major Elwes and states 

 that they are certainly this form (Proceed. R. Irish Acad. XXXI. 47, 1914, 

 p. 51). 



HARMOTHoiE IMBRICATA (Limi.) : McIntosh, Mon. Brit. Ann. I. 2, 1900, 

 p. 314. 



Plymouth. Between tide-marks amongst Laminaria roots on 

 the Breakwater : amongst Hydroids, Polyzoa, etc., on Eddystone 



Grounds (Hodgson, Journ. M.B.A., vol. 6, 1900, p. 245). 



This form seems to be rare at Plymouth, and I have not suc- 

 ceeded in re-finding it. 



Harmothoe spinifera (Ehlers) : Mcintosh, Mon. Brit. Ann. I. 2, 

 1900, p. 327. 



Plymouth. Amongst dredgings from Millbay Channel, Queen's 

 Ground, Asia Shoal, etc., and Yealm River : common (t.v.h., 



R.A.T., E.J.A.). 



Salcombe. Dredged in the channel west of the Salstone, and 

 between the Salstone and Snape's Point {Hodgson, Journ. M.B.A., vol. 6, 

 1900, p. 190). 



Torquay. One specimen only found {Elwes, Journ. M.B.A., vol. 9, 

 1910, p. 59). 



Harmothoe lunulata (Delle Chiaje) : Mcintosh, Mon. Brit. Ann. I. 

 2, 1900, p. 342. 



Plymouth. A not uncommon tidal form. Found among roots 

 of Laminaria on the Breakwater, and occasionally under stones 



