31etaphoxus 139 



2. M. fultoni (T. Scott) 1890 Phoxocephalus f., T. Scott in: Rep. Fish. Board 

 Scotl.. V.8 p. 327 t. 12 f. 10-12; t. 13 f. 13—19 | 1892 P. f., D. Robertson in: P. nat. 

 Hist. Soc. Glasgow, n. ser. v. 3 p. 207 | 1896 P. f., Calman in: Tr. Irish Ac, u 30 

 p. 743 t. 31 f. 1, 2 I 1893 P. chelatus, A. Della Valle in: F. Fl. Neapel, u20 p. 742 t. 5 

 f. 10; t.35 f. 29-35. 



Body compressed, especially iu d. Hood ueaiiy straigbt, not very long. 

 Side-plate 1 expanded distally, 1^* — 3^ with 3 or 5 setae, 4*^ as broad 

 as long, with pretty evenly rounded bind margin. Pleon segment 3, postero- 

 lateral angles squarely rounded. Eyes well developed, dark, larger in ö. 

 Antenna 1 in Q , 1^* Joint as long as 2"^ and 3*^ combined, flagellum shorter 

 than peduncle, 4-jointed, accessory flagellum 3-jointed; in d longer, 1^* Joint 

 with dense brush, flagellum longer than peduncle, 5- or 6-jointed with 1 or 

 2 calceoli, terminal setae long, accessory flagellum 3-jointed. Antenna 2 in 



9 about ' .{ longer, flagellum very short, 3-jointed; in ö about as long as 

 body. penultimate Joint of peduncle and 2 preceding joints densely hirsute, 

 ultimate Joint with 1 calceolus, flagellum about 22-jointed, calceoliferous. 

 Palp of mandible not very slender. Maxiila 1, the 1-jointed palp narrow 

 but rather long. Gnathopods 1 and 2, 5*'^ Joint rather longer and more 

 triangulär in gnathopod 1, the subquadrate 6*^ Joint narrower, but in both 

 the front margin of this Joint is shorter than the bind one, with which 

 the oblique convex palm forms an acute angle, thus tendiug to a chelate 

 form. Peraeopods 1 and 2, apical spine of o*'^ Joint sometimes shorter 

 than 6*'i joiut. Peraeopod 3 as in Paraphoxus oculatus (p. 137). Peraeo- 

 pod 4 not very slender, about equal Vs length of body, bind margin of 2^ Joint 

 a little produced, 4^*^ Joint as long as 5*^. Peraeopod 5 rather longer in 



ö than in Q , 2*^ Joint as long as rest of limb, nearly as broad as long, 

 overlapping 3*^ Joint, bind margin crenate, with setules. Uropod 3 in Q short 

 and stout, inner ramus b\ilf length of P* Joint of outer, in ö more elongate, 

 inner ramus equal to 1^* Joint of outer, both with long plumbse setae. 

 Telson deeply cleft, lobes truncate, with 1 spinule and some setules. Colour 

 greyish pellucid, with violet tinting on middle of back. L. 2*5 mm. 



Firth of Clyde, Firth of Forth, Menai Strait, Galway Bay; Gulf of Naples. 

 Froni low water to 40 in. 



3. M. pectinatus (A. Walker) 1896 Phoxocephalus simplex (err,?, non Phoxus s. 

 Bäte 1857!), Calman in: Tr. Irish Ac, v.HO j). 748 t. 32 f. 3 | 1896 P. pectinatus, A. O. 

 Walker in: Ann. nat. Hist.", ser. 6 vA7 p. 343 t. 16 f. 1—6; u 18 p. 156 | 1899 Meta- 

 plioxus p., Chevreux in: C.-R. Ass. Frang., Sess. 27 v.-2 p. 477. 



Hood sliglitly deflexed at the apex, postero-antennal corners sligbtly 

 rounded. Side-plate 1 well expanded distally, P* — 3«^ with 3 or 4 simple setae 

 on lower margin, 4*^ little deeper than broad, bind nuirgin convex, oblique, 

 5*'* with bind lobe much deeper than front. Pleon segment 3, postero-lateral 

 angles sligbtly rounded. segment 4 with 1 or 2 spinules^n dorsal tubercle (d). 

 Eyes round, dark, large, especially in ö . Antenna 1, l^* Joint longer than 

 2^ and 3*^ combined, upper margin produced in d, flagellum 4-iointed, in 

 ä with 2 calceoli and endiug in a long seta, accessory flagellum 3-jointed. 

 Antenna 2, flagellum in 9 4-jointed, as long as the stout penultimate Joint 

 of peduncle, in 6 about -/a length of body, calceolated along with 

 ultimate Joint of peduncle. Mandible with spine-row, molar rudimentary 

 (at least ind), 2<^ Joint of palp longer than 3^, 3*^ distally expanded, carrying 

 many setae. Gnathopod l smaller than gnathopod 2, with less oblique palm 

 and less powerful palmar tooth, in both gnathopods joints 4 and 5 combining 

 to form a small cup for the large 6*^^*^ Joint, which in gnathopod 1 is much 



