302 REV. T. R. R. STEBBTNG ON STALK-EYED CRUSTACEA MALACOSTRACA 



EXPLANATION OF PLATES. 



Plate XXIII. 



CoryrhyncJius algieola, n. sp. 



n.s. Natural size of -specimen figured above in ventral aspect without limbs and in dorsal aspect with first 



and fifth perseopods on the left and all five peraeopods on the right, and garniture of seaweed 



masking the second peraeopod and partly overlapping its neighbour ; setae for the most part 



omitted. 

 r.v. Ventral aspect of rostrum with the right eye, the longitudinally folded first antenna, second antenna 



of the right side, and anterior margin of the buccal frame. 

 r.d. Dorsal aspect of the rostrum with its hooked setae. 

 T. Distal margin of the pleon of the female. 

 a.s. First antenna. 

 m., m., mx. 1, mx. 2, mxp. 1, 2, 3. The two mandibles; first and second maxillae ; first, second, and third 



maxilliped8. 

 prp. 1. Fingers and part of palm of first peraeopod (cheliped). 

 prp. 4. Sixth and seventh joints of fourth peraeopod. 



pip. One of the pleopods of the female, with three of the multitudinous eggs adherent. 

 All the figures of separate parts are magnified to a uniform scale. 



Plate XXIV. 



Planes minutus (Linn.). 



n.s. Dorsal view of a specimen natural size, with much magnified view of anterior portion below, and below 

 this a similarly magnified view of the ventral aspect, excluding the limbs except the right cheliped. 

 a.s., a.i. The first and second antennae. 



mx. 1, mx. 2, mxp. 1, 2, 3. First and second maxillae; first, second, and third maxillipeds. 

 prp. 5. Last four joints of the fifth perseopod. 

 pip. 1, pip. 4. Rami of the first and fourth pleopods. 

 The separate parts are drawn to a uniform scale. 



Plate XXVa. 

 Hijmenosoma orbicularis, Desmarest. 



n.s. Dorsal view of female specimen, natural size. The other figures are much magnified, to a uniform scale. 



oc, a.s., a.i. Eye, first and second antennae. 



mxp. 1, 2, 3. First, second, and third maxillipeds. 



prj). 5. Last two joints of the fifth peraeopod. 



The first antenna and the fifth peneopod are from a female specimen, the other appendages from a male 

 of the same size. 



Plate XXVb. 

 Lysioericldlius edwardsii (Eydoux and Souleyet). 

 n.s. Line indicating length of the specimen figured in lateral view. 

 car. Dorsal view of carapace, with portions of the eyes, first and second antennae, and one of the medio- 



lateral spines projecting. 

 pi. Pleon fnmi the third segment, as seen projecting between the postero-lateral spines of the carapace ; 



part of hind margin much more highly magnified. 

 a.s. First antenna. 

 mxp. 1, 2, 3. First, second, and third maxillipeds, with distal part of first and third much more highly 



magnified. 

 />/■/>. 1. First peraeopod. 

 urp. One of the uropods. 



