StegocephaJidae, Phippsia 





Synopsis of the genera: 



Mandible (Fig. 17, 21) denticulate ~ 2. 

 Mandible not denticulate — 6. 

 Telson cleft — 3. 

 Telson not cleft — 5. 

 Jlaxilla 1 (Fig. 15), palp 2-jointed . . . 

 Maxiila 1, palp 1-jointed — 4. 

 Peraeopod 4, 2<i Joint expanded . . . . 

 Peraeopod 4. 2d Joint not expanded . . 

 Maxillipeds, inner plates of normal size 

 Maxillipeds, inner plates very short . . 

 Telson not cleft — 7. 

 Telson cleft — 8. 



Maxilla 1, palp 2-jointed 



Maxiila 1 (Fig. 20), palp 1-jointed . . . 

 Pleon segment 6 very elongate . . . . 

 Pleon segment 6 not very elongate . . 



1. Gen. Phippsia p. 89 



2. Gen. Stegocephalus . . . p. 90 



3. Gen. Stegoeephaloides . . p. 91 



4. Gen. Andaniopsis . . . . p. 92 

 0. Gen. Andaniella . . . . p. 93 



6. Gen. Andaniexis 



7. Gen. Parandania 



8. Gen. Andaniotes 



9. Gen. Euandania. 



p. 94 

 p.95 

 p.96 

 p.97 



inner 

 plate 



palp 



outer 

 plate 



outer 

 plate 



1. Gen. Phippsia Stebb.*) 



1793 Subgen. Gammarellus (part.), J. F. W. Herbst, Naturg. Krabben Krebse,. 

 i;.2p. 106 ] 1891 Aspidopleurus (non F. J. Pictet & A. Humbert 1866, Pisces!), G. 0. Sars, 

 Orust. Xorway, v.l p. 203 j 1893 A., A. DellaValle in: F. Fl. Neapel, ».20 p. 632. 



Side-plate 4 immensely expanded, overlapping side-plates 5 and 6. 

 Eyes wanting. p]pistome projecting as rouuded compressed lobe. Upper lip 



slightly and centrally notched. 



Lower lip, lobes naiTOw, not 



strongly dehiscent. Mandible, 



cutting edge narrow, finely 



dentate. Maxilla 1 (Fig. 15), 



inner plate setose on inner 



margin of narrowed distal half, 



palp very small, but 2-jointed. 



Maxilla 2 (Fig. 1 6), inner plate 



long, distally rather widened, 



outer plate wide apart, linear, 



tipped with longhooked spines. 

 Maxillipeds, inner plates narrow, obliquely truncate, outer reaching beyond 

 acutely produced 2^ Joint of palp. Gnathopod 1 rather stouter than gnatho- 

 pod 2. Peraeopod 4, 2'i Joint linear. Peraeopod 5, 2'^ Joint expanded. üropod 3, 

 rami lanceolate, unarmed. Telson oval, more or less cleft. 



2 species. 



Synopsis of species: 



Head with acute rostrum 1. P. ampulla. . . p. 89 



Head without distinct rostrum 2. P. gibbosa . . . p. 90 



Fig. 15. 



P. gibbosa. 



Maxilla 1. 



[After 

 G. 0. Sars.] 



Fig. 16. P. gibbosa. 



Maxilla 2. 



[After G. 0. Sars.] 



1. P. ampulla (Phipps) 1774 Cancer a., Phipps, Voy. North Pole, p. 191" 1. 12 

 f. 3 I 1781 Gammarus a., J. C. Fabricius, Spec. Ins., v.\ p. 515 | 1793 Cancer (Gamma- 

 rellus) a., .1. F.W. Herbst, Naturg. Krabben Krebse, v.'2 p. 116 t. 35 f. 1 | 1840 Lysia- 

 nassa? a., H. Milne Edwards, Hist. nat. Crust., v.S p.22 1 1866 Stegocephalus a. (part.), Goes 



*) Xom. nov. After Constantine John Phipps. — The name Aspidopleurus is 

 preoccupied (1866, F. J. Pictet & A. Humbert, Poiss. foss. Liban, p. 107). 



