no. 1758. ON MARINE COPEPODA AND CLADOCERA. SHARPE. 433 



A 66. Caudal rami narrow, prolonged, and very divergent. Body elongate, subcylin- 

 drical, with no sharp divisions. Large, from 2.0 to 2.5 mm. long. Truly 



pelagic, near the surface Halithalestris. 



Caudal rami not narrow, and not divergent; not much longer than wide. .A ii7. 



A 67. Rostrum sharply defined from the cephalic shield, and partially mobile. Body 

 slender, cylindrical, and somewhat laterally compressed. Fifth le<_rs of 



moderate size. Littoral and tidal pools, among algse Parathalestris. 



Rostrum nol defined at base, short, thick, and not. mobile. Body robust. 

 Rami of firs! legs subequal in length; fifth legs large. Littoral. K) to 20 

 tat horns, in algae Thalestris. 



UNCLASSIFIED. 



Ancorabolus, new genus, mirabilis new species, A. M. Norman, Notes on the Nat. 

 Hist, of Easl Finmark, Ann. Mag. Nat. Hist. (7), vol. 10, 1902, p. 341; vol. 

 11, 1903, ]>]). 1-4. 



Dermatomyzon, l>. < legans C. Claus, Arbeit. Zool. Inst. Wien, vol. s, L889, pp. 327-370. 



LamippeT. Scott, 1896, Fourteenth Ann. Rept. Fisheries Board of Scotland. 



Parartotrogus, new genus, richardi, new species, Firth of Forth, T. Scott, Ann. Mag. 

 Nat. Hist. (6), vol. 11, L893, pp. 210, 211, figs. 1-11. 



Pseudocletodes, new genus, vararensis, new species, Moray Firth, T. Scott, Ann. Mag. 

 Xat. Hist. Mi', vol. 12, 1893, p. 239, pi. 12, figs. 1-14. 



Pseudolaophonh for /'. aculeata, off Spanish Head. Isle of Man, A. Scott, I'roc. Liv- 

 erpool Biol. Soc, vol. 10, 1896, p. 144. 



SYNONYMS. 



Amymone= Tegastes. 



Beatricella=SU nh I'm. 



( 'arillu8=Peltidium. 



< '/> (a --- LaophonU . 



Cyclopicera=D( rmatomyzon. 



Cylindrosoma=( 'ylindropsyllus. 



Dactylopus=Dactylopusia. 



Evansia= Tetragon iceps. 



Jonesiel.la=Da n ielssi n in . 



Jurinia. Related to Nannopusl (See Brady, Copepoda of the British Islands, 



vol. 2, 1880, p. 101.) 

 Leptascus= Tetragoniceps '.' 

 Lilljt In in/ in = ( li links. 

 Oniscidum=Peltidiu'm. 

 Ophiocamptus= Moraria. 

 Orthopsyllus= < 'l< /odes. 

 Pse udo west wood i a = Pseu doth a lestris . 



Reticulum — l'( Itiilinin . 



ScuU 1 1 i<lium=Psamal lie . 

 Stcropc=P< /In/in in. 

 Tish, hlijn. 



Westwoodia=Paravcstwoodia ( ' (new name). 



"Old name Wtstwoodia preoccupied in Ilymenoptera. 

 I'roc. N.M.vol.38— 10 28 



