(hi (I tit'io Sill- 1 liirse fnun Musrit. ~t\ 



117. Pet'ioculod:x longinianwi (Rate). 



18(59. Monocuhden hngimanm, Bate & VVestwood, (1) vol. ii. p. 507. 

 1870. Monoculnden Grtihei, Hoeck, (137), p. 85. 

 187t'>. MiinociihliA (fruhci, l{o>ck, (l-'i"^) p. 2<$'.), pi. xvi. fig. 1. 

 188'^. Mmincuhide* (irnhei, Schneider, /. c. p. 24. 



1887. Munocii'oiii's loujimanus, Clievreux, Cat. Crust. Amphip. du 

 SiiiUouest dt! la Breta;rne, p. l."5, pi. v. tijjfs. 1, 2. 



1888. MimoculiHl<'.t t^rinimnnm (^tn-m\n, MS.), Robertson, " Contrib. 

 Cat. Aiupliip. and Isop. of Firth of t'lyde," Trans. Nat. Hist. Soc. 

 01as;;o\v, vol. ii. n. 2(5 (.sepirafrt copy), S . 



1889. Monocnhdi'sloiigimanun, Norman, " Notes on British .\inphip.," 

 Ann. & -Mag. Nit. ilist. .ser. !>, vol. iii. p. 451, pi. x\. figs. 6-9. 



1892. Prriiirnliidi's lunijinianm, (}. (). Sars, (142) p. ."il.'i, pi. ex. fig. 2, 



pi. cxi. fig. 1. 

 189:^. (Efirn-oa loniiimaniis, Delia Valle, (1.39) p. 517. pi. i v. tig. 9, 



pi. xxxiii. figs. 32-30. 



llnb. Kame.s Bay, Isle of Ciimbrae, 1-4 fathom.'?; Oban; 

 off Marsden, Co. Durham, 10 fathom.s ; Starcross, Devon, 2-3 

 fathoms; Clew Bay, Co. Mayo (.4. M. N.) ; Banff {T. 

 Edward) ; Firth of Forth (T. S.) : Mas. Nor. Upper Loch 

 Fyne and off Spiirni Head (7'. -S'.) ; Isle of Man; North 

 Wales; Jersey; (Juernsey ; Valentia, Ireland (.1. 0. W.). 



Distrib. Svolvier, Lofoten Islands; Trondhjem Fiord, 

 5 fathoms (.1. .1/. N.) ; South Norway [G. 0. Sars) ; Naples 

 {A. M. N. ii; Bella Valle) : Mas. Nor. Kattegat (Meinerf); 

 West Fr.mce (Chevreu.v) ; Spezia (G. 0. Sirs). 



EXPLANATION OF I'LATF III. 



Fii/. 1. Amphilochtis nenjiolitami,^, Delia Valle. Second gnathopid, 



Fiy. 2. iSfetiot/iop Kefosa, s\). i\. Fir.>it gnalhopod. 



Fu/. 3. Ditto. Second guathopod. 



Fit/. 4. Ditto. Last peneopod. 



Fiff. 5. Afetopa rui>ion/fiita,(i. i). i^ar:*. First gnathopod. 



/■'///. 6. Metopa abscisa, .sp. n. First gnathopod. 



Fif/. 7. Ditto. Terminal joints of first gnathopod, more magnified. 



Fig. 8. Ditto. Soc<^)nd gnathopod. 



Fiif. 9. Ditto. Palm of second gnathopod, more Hiagnitied. 



Ft^. 10. Ditto. Last por.i-opod. 



V. — Dt'scription of a new Sea-Horsp. (IIi[)pocampns)//-om 

 Muscat. By G. A. B()nM:\(}KK, F.R.S. 



Il{p)wcamjnis Jayak iri. 



11 segments on the body. All the tubercles produced into 

 long slender spines ; supraorbital spine longer than the 

 diameter of the orbit, longer than the azvgous spine in front 



4* 



