Carrinoluyical Fauna of Iiulia. 195 



Basal antennal joint somewhat enlarged, and coalescent at its dis- 

 tal extremity with the front ; beneath which the flagella are inserted 

 out of sight in a dorsal view. 



The external maxillipeds are small, the merus distally truncated, 

 ■and bearing the palp at its antero-internal angle. Chelipeds in the male 

 moderately developed, with the palms compressed and cristate above, 

 the fingers somewhat excavated at the tips, and not apposable through- 

 out their extent. Ambulatory legs short — the longest pair not much 

 longer than the chelipeds, daetyli snort, stout, strongly recurved, and 

 more or less toothed along the posterior margin. 



Suenia proteus, de Haan. 



Mnja (Huenia) proteus, de Haan, Faun. Japon. Crust., p. 95, pi. xxiii. figs. 4-6. 



Huenia proteus, Adams and White, ' Samarang ' Crustacea, p. 21, pi. iv. tigs. 

 4—7, and p. 22, pi. iv. fig. 5. 



Huenia proteus, Haswell, Proc. L. S., N. S. Wales, Vol. IV. 1879, p. 437; and 

 Cat. Austr. Crust , p 9. 



Huenia proteus, Miers, Zool. 'Alert, 1 pp. 182 and 191, and ' Challenger ' Bra- 

 chyura, p. 35. 



Huenia proteus, C. W. S. Aurivillius, Kongl. Svensk. Vet. Akad. Handl. XXIII. 

 1888-89, No. 4, p. 40, pi. iii. fig. 3. 



Huenia proteus, R. I. Pocock, Ann Mag. Nat. Hist. (6) V. 1890, p. 79. 



Huenia proteus, Henderson, Trans Linn. Soc, Zool. (2) V. 1893, p. 341 



Huenia proteus, Ortmann, Zool. Jahrb., Sysfc., etc., VII. 1893, p. 40. 



Carapace flat, depressed, with two low elevations in the middle line, 

 •otherwise smooth: in the male the carapace is elongate triangular, with 

 the lateral epibranchial angles produced to form small lobes, and some- 

 times with the hepatic regions expanded in the same way : in the 

 female the carapace is quadrilobate, owing to the foliaceous extension of 

 the hepatic and epibranchial angles. Rostrum long, simple, acute, 

 deep, and laterally compressed. Snpra-ocular spines small. Eyes 

 small, deeply sunk beneath the pre-ocular spine, almost immovable. 



In the male the chelipeds are somewhat shorter, and the next pair 

 of legs (which are the longest) are somewhat longer than the carapace 

 and rostrum combined: in the female the chelipeds are considerably 

 shorter than, and the next pair of legs are about the same length as, 

 the carapace and rostrum. In the female and young male the fingers, 

 which are closely toothed, meet throughout the greater part of their 

 extent : in the male they meet only at the tips. 



The last three pairs of le^s are very short. All the long joints, 

 •except the daetyli, of all the trunk-legs are more or less carinate dor- 

 sally (anteriorly), the carination often being more or less discontinuous in 

 the case of the chelipeds: the daetyli of the ambulatory legs are stout, 

 strongly recurved, and more or less toothed along the posterior margin . 

 41 



