74 CHARLES BRANCH WILSON 



Remarks. This species is closely related to Lepeophtheirus longipes, but 

 the body proportions are quite different, the furca is much longer and narrower 

 and its branches are divergent. The rudiments of endopods are also present 

 upon the first legs while the fourth legs do not reach the posterior margin of 

 the genital segment. The abdomen has but a single joint instead of two. For 

 these reasons it has not seemed presumptuous to create a new species although 

 there is but a single specimen, especially since it was found upon an entirely 

 different host. 



Chondracanthus clavatus Bassett-Smith. 



Host and record of specimen. A single female was taken from the 

 gills of the clingfish, Gobiesox (Sicyases) sangiiineus, Dec. 23, 1916 at Juan 

 Fernandez (Masatierra). 



Remarks. This species has been found hitherto only in the waters about 

 the British Isles upon such hosts as the lemon sole (Pleuronectes microcephaliis) 

 and a small dab or flounder. It has been fully described, first by Bassett- 

 Smith in Annals and Magazine Natural History, series 6, vol. 18, 1896, p. 13; 

 pi. 5, fig. I, and afterward by T. Scott in the Eighteenth Annual Report of 

 the Fishery Board for Scotland {1900), p. 165; pi. 7, figs. 35 — 37. 



The present specimen corresponds so closely with these published descrip- 

 tions and figures that we have to conclude it is the same species although it 

 comes from a far distant region and from an entirely different host. 



Lernanthropiis sp. 



Host and record of specimen. A single female with ^^^ strings was 

 obtained from the gills of the sculpin, Scorpis chilensis, Dec. 23, 1916, at Juan 

 Fernandez (Masatierra). 



Remarks. Although this is probably a new species it is impossible to 

 obtain drawings of the various appendages without destroying the specimen. 

 It is better to wait for more material, therefore, before establishing the spe- 

 cies. It will be closely related to Lerna?ithropus trachuri established by Brian 

 in 1903. 



Explanation of Plates. 



Plate 2. Fig. i. Dorsal view oi Juanettia cornifera, gen. n.; sp. n. Fig. 2. Side view of Iiead 



and first and second thorax segments. Fig. 3. Mandible. Fig. 4. Maxilliped. Fig. 5. 



Mouth parts of male. Fig. 6. First swimming leg of female. 

 Plate 3. Fig. 7. Dorsal view of male of Juanettia cornifera. Fig. 8. Dorsal view of female 



of Caligiis aesopus, sp. n. Fig. 9. Second antenna. Fig. 10. Third swimming leg. 

 Plate 4. Fig. 11. Furca of Caligus aesopus. Fig. 12. First swimming leg. Fig. 13. Fourth 



swimming leg. Fig. 14. Dorsal view of female oi Lepeophtheirus tnteritus. Fig. 15. 



First maxilla. Fig. 16. Furca. Fig. 17. First swimming leg. 



