or even stages in the growth of the tubules. It may be worth 

 noticing that these outgrowths are coloured in agreement 

 with the part from which they spring. The two largest 

 specimens, which were of a more uniform red than most of 

 the others, also had the carapace and the limbs dorsally 

 almost free from outgrowths, though in parts there were 

 indications of their coming to development. From this it 

 may be surmised that the tubules and leaf-like appendages 

 are lost at the exuviation and have to be grown afresh. 

 Dr. Graeffe considers that they may be auxiliary to respira- 

 tion as well as facilitating the adhesion of algae and other 

 substances. 



OXYSTOMATA. 



FaM. : CALAPPIDAE. 



1S96. Calappidae, Alcock, JNIaterials for a Carcinological 

 Fauna of India, No. 2, p. 136. 



Gen. : MURSIA, Desmarest. 



1825. Miirsia, Desmarest, Considerations generales sur la 



classe des Crustaces, p. 108, footnote. 

 1829. JMnrsia, Latreille, Le Regne Animal, Cuvier, nouv. ed., 



V. 4,.P. 39- 

 1837. ]\/ursta, de Haan, Siebold's Fauna Japonica, 



Crustacea, p. 70, and p. xviii. (1849). 

 1837. Mursia^ Milne-Edwards, Histoire Naturelle des 



Crustaces, v. 2, 109. 

 1839. Thealia, Lucas, Ann. Soc. Entom. France, ser. i, v. 8, 



P- 577. 

 1852. Mitrs/a, Dana, U.S. Exploring Expedition, v. 13, 



P- 391- 

 1 8^6. Mtcrsia^ Miers, Challenger Brachyura, Reports, v. 17, 



p. 290. 

 1896. Jfiirsia, Alcock, Journ. Asiatic Society of Bengal, 



v. 65, pt. 2, p. 148. 



Desmarest, who compares the genus with Hepatus and 

 gives a distinguishing feature, says that the generic name 

 had been adopted in the museum collection by Latreille from 

 Leach. But, according to Miers, Leach's manuscript name 

 was jMurcia, and referred to a neighbouring genus afterwards 

 defined as Cyclo'es by de Haan, and as Cryptosoma by Brulle 

 and by Milne-Edwards, both names being published in 1837. 

 Latreille in 1829, though accepting Mursia in Desmarest's 

 sense, thinks that it ought to be changed as too near to 

 another sub-genus of crustaceans, Nursia. 



