ERRATA IN PART XXXVIIL 
Page 41. The species described as Botrylloides purpureum was afterwards changed to Botrylloidcs 
tyreum (see p. 381). 
Page 238, line 14 from top of page, for “ Psammaplidium incrustans” read “ Psammaplidium 
effrenatum.” 
Page 267, Hue 3 from foot of page, for “ Diplosomoides ’’ read “ Didemnoides.” 
Page 276, lines 7 and 10 from top of page, /o?’ “ Leptoclinidae ” read “ Didemnidae.” 
ADDENDA TO PART XXXIX. 
Page 24, under “ Synapta inlicerens, 0. P. Miiller, 1788,” insert as spionyms “ Holothuria {Minyas ?) 
flava, Eathke, 1843, and Synapta flava, Lampert, 1885.” 
Page 26, under “ Synapta lumhricoides, Eschscholtz, 1829,” insert “ Synapta Innibricus, Jseger, 1833.” 
Page 34, under “ Chirodota australiana, Stimpson, 1856,” insert “ according to Semper, 1868, possibly 
a new genus, Tcenioyyrus.” 
Page 34, under “ Chirodota violacea, Peters, Muller, 1849,” insert “ Hah., Amirante Islands (Bell, 1884).” 
Page 34, under “Chirodota Iccvis, Fabricius, 1780,” insert “ Chirodota pellncida, Sars, 1861.” 
Page 101, under “ Cucumaria lactea, Forbes, 1841,” insert “ Hah., West Coast of France (Barrois, 1882).” 
Page 112, under “ Cncmnaria lonyipeda. Semper, 1868,” insert “ Hah., Japan (v. Marenzeller, 1881).” 
Page 209, under “Holothuria grdjfei. Semper, 1868,” insert “ (?) Stichopus troschelii, J. Muller, 1854, 
and Holothuria troschelii, Muller, Lampert, 1885.” 
Page 240, under “ Ananus holotJmroides, Sluiter, 1880,” insert “ Aprochis holothuroides, Verloren, 
1881.” 
