METAMORrnOSlS OF CORYSTES CASS1\'E[,AUNX]S. 477 



3. Faxon, W. — "Reports on an Exploration off the West Coasts of Mexico, 



Central and South America, and off the Gahi|)agos Ishiiids:XV, The 

 Stalk-eyed Crustacea," 'Mem. Mus. Comp. Zool. Harvard Coll.,' 

 xviii, ]895. 



4. Garstang, W. — "The Habits and Respiratory Mechanism of Corystes 



Cassivelauiius," 'Jourii. Mar. Biol. Ass.,' iv, pp. 223 — 232, 189G. 



5. Garstang, W. — "Tlie Functions of Antero-lateral Denticulation of the 



Carapace in Sand-burrowing Crabs," 'Journ. Mar. Biol. Ass.,' iv, 

 pp. 39G— 401, 1897. 



6. GaestanGj W. — "On some Modifications of Structure Subseivient to 



Respiration in Decapod Crustacea wiiich burrow in Sand," ' Quart. 

 Journ. Mic. Sci.,' xl, 1898, p. 211. 



7. Heller, C. — 'Die Crustaceen des Siidlichen Europa,' Wien, 1863. 



8. Milne Edwards, H. — 'llistoire naturelle des Crustaces,' 1831. 



9. Prentiss, C. W. — "Tiie Otocyst of Decajiod Crustacea: its Structure, 



Development, and Functions," ' Bull. Mus. Comp. Zool. Harvard Coll.,' 

 xxxvi. No. 7, 1901. 

 10. Weldon, W. F. R. — "Note on the Functions of the Spines of the Crus- 

 tacean Zoffia," ' Jouri'. Mar. Biol. Ass.,' i, n. s., 1889-90, p. 1G9. 



EXPLANATION OF PLATES 29—31, 



Illustrating Mr. Robert Gurney's paper on " Tlie Metamor- 

 phosis of Corystes Cassivelaunus (Pennant)." 



All figures drawn with the aid of the camera iucida. 



Fig. 1. — (X 32.) Zoaja of the first stage, showing dislributi'ui of ciiro- 

 niatophores. 



Fig. 2.— (x 100.) Tdson of the first zosea. 

 F'ig. 3. — ( X 47'5.) Zosea of the second stage. 

 Fig. 4. — (x 100.) Telson of ihe second zosea. 

 Fig. 5. — (x 47"5.) Telson of the third zosea. 

 Fig. 6. — (x 35.) Third maxillipede of tlie first post-larvul stage. 

 Fig. 7.— (x 2G.j Zoic a of the fourth stage. 



Fig. 8. — (x 65.) Second maxilla and thoracic ajjpendagcs of liie third 

 zosea. 



Ep. 1 — Ej). 3. Epipodiles of maxillipcdes 1 — 3. 

 a 1 — a 3. Arihrobranchs 1 — 3. 

 p', ]r. First and second pleurobranchs. 

 uixp^. Third maxillipede. 



