Explanation of Plates. 271 



prp. 1, 2, 4, 5. First, second, fourth, and fifth peraeopods, on the 



same scale as the carapace and pleon. 

 pip. 1, 2. First pair of pleopods, and one member of the second pair, 



with" much higher magnification of the latter. 



PLATE XXIII. (Crustacea, Plate GUI.) 

 Eudromia bituberculatus, n. sp. 



n.s. Lines indicating natural size of the carapace in the adjoining 

 dorsal view of a female specimen, with fourth and fifth 

 peraeopods and part of pleon in attachment, the ventral view 

 below showing the left cheliped attached. 



oc., prp. 3. An eye, and distal part of third peraeopod on the same 

 scale as the above. 



a.s., a.i. First and second antennae more highly magnified, on the 

 same scale as the remaining figures. 



m., mx. 1, 2,mxp. 1, 3, pip., pip. Mandible, first and second maxillae, 

 first and third maxillipeds ; one of the large pleopods (with 

 rarni not quite complete), and the small, last pleopod. 



PLATE XXIV. (Crustacea, Plate CIV.) 

 Latreillopsis alcocki, u. sp. 



n.s.D. Specimen in dorsal view, natural size, with fourth peraeopod in 



position on the right and fifth on the left, 

 n.s.v. Part of specimen, natural size, in ventral view, Avith first and 



second peraeopods in position on the right, 

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

 mx. 1, mxp. 1, 2, d. First maxilla, first and second maxillipeds, and 



dactylus of a peraeopod, to the same scale as eye and antennae, 

 m., mxp. 3. Mandible and third niaxilliped, more highly magnified 



than the foregoing. 



PLATE XXV. (Crustacea, Plate CV.) 

 Hapaloptyx difficilis, n. g. et sp. 



n.s. 9 . Lines indicating natural size of female specimen figured 

 below in dorsal aspect, with partial view of the ventral aspect. 



PI. Last four segments of the pleon, flattened out, with the uropods. 



a.s., a.i. First and second antennae. 



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

 third maxillipeds, on a uniform scale with the eye and 

 antennae. 



19 



