200 Stenothoe, Phliantidae, Phlias 



S. longiraana (Bäte) 1862 Montagua l, Bäte, Cat. Amphip. Brit. Mus., |). 57 

 t. 9 f . 1 1 1885 Probolimn longimanuyn, J. V. Carus, Prodr. F. Medit., v. 1 p. 407 | 1893 

 Stenothoe?, A. DellaYalle in: F. Fl. Neapel, ».20 p. 569. 



„Piedmont". 



S. miersii (Hasw.) 1880 Montagua m. -\~ M. longicornis (d-"*)? Haswell in: 

 P. Linn. Soc. N.S.Wale.s, v.i p. 323 t. 24 f. 4; p. 323 t. 24 f. 5 | 1883 Montaguana m., 

 Chiltou in: Tr. N. Zealand Inst., n 15 p. 79 | 1885 Probolium m., Chilton in: P. Linn. 

 Soc. N. S.Wale.s, v. 9 p. 1043 | 1893 Stenothoe motioculoides? -f- Montagua miersii, 

 A. DellaValle in: F. Fl. Neapel, r.20 p. 569. 



L. about 4 mm. 



South-Pacific (Port Jackson [East- Australia] ; Timaru and Lyttelton Harbour 

 [New Zealand]). 



12. Farn. Phliantidae 



1899 Phliadidae. T. Stebbing in: Tr. Linn. Soc. London, ser. 2 v.l p. 414. 



Peraeon stroiigly developed. Pleon segments 5 and 6 subjectto degradatiöu 

 (Fig. 52). Antennae 1 and 2 short. Antenna 1 without accessoiy flagellum, 

 flagellum with sensory filaments. Upper lip with distal raargin usually undivided. 

 Lower lip without inner lobes. Maudible without palp. Maxiila 1 with 

 palp obsolete. Maxillipeds variable, Guathopods 1 and 2 simple or only feebly 

 subchelate. Peduucle laterally produced in one or more of the pleopods (Fig. 53). 

 üropod 3 usually not biramous. Telson short, entire. 



Marine. 



6 genera, 6 species. 



Synopsis of genera: 



{ Maxillipeds, palp 3-jointed — 2. 



) Maxillipeds, palp 4-jointed — 4. 



j Uropod 3 biramous 1. Gen. Phlias . . . . p. 200 



\ üropod 3 not biramous — 3. 



J Uropod 3, peduncle and ranius distinct . . . .2. Gen. Pereionotus . p. 201 



) Uropod 3, ranius not distinct from peduncle . . 3. Gen. Palinnotus . . p. 202 



( Pleopod 3 (Fig. 53), inner ramus rudimentary . 4. Gen. Iphiplateia . . p. 203 



) Pleopod 3, inner ramus well developed — 5. 



_ ( Side-plates 1 — 4 very deep 5. Gen. Iphinotus . . ]>. 204 



) Side-plates 1^4 very shallow 6. Gen. Bireenna . . . p. 205 



1. Gen. Phlias Guer. 



1836 Phlias, Guerin (-Mcneville) in: Mag. Zool., Gl. 7 t. 19 | 1840 F., H. Milne 

 Edwards, Hist. nat. Crust., t;. 3 p. 23 | 1853 P., J. D. Dana in: U. S. expl. Exp., r 13ii 

 p.908 ; 1862 P., Bäte, Cat. Amphip. Brit. Mus., p. 83 | 1888 P., T. Stebbing in: Hep. 

 Voy. Challenger, r. 29 p. 165 j 1899 P., T. Stebbing in: Tr. Linn. Soc. London, ser. 2 

 V. 7 p. 414. 



Body short, laterally compressed. Peraeon segraents 1 — 7 tuberculately 

 carinate. Pleon segraents 5 and 6 coalesced, or .5*^ missing. Head sniall, 

 partially imniersed in peraeon segment L Side-plates 1 — 4 large. Fyes 

 prominent. Antennae 1 and 2 short, antenna 1 the longer and rauch the stouter, 

 both closely similar to those of Pereionotus, as likewise the lirabs, so far as 

 is known. Maxillipeds, palp 3-jointed. Pleopod 3 (uropod 1 according to 



