160 Bulletin, Vanderbilt Marine Museum, Vol. IV 



deposits are very numerous, button-like, covered with roundish, large 

 nodules. As a rule they are similar to those of C. lactea, but are dis- 

 tinctly larger and with more holes. The small, irregular cups in the 

 outermost layer of the skin are identical in C. planci and C. lactea. 

 Excellent figures of the various types of microscopic deposits of 

 C. planci are to be found in Koehler's "Faune de France, Echino- 

 dermes," p. 153, fig. 104, 1924. 



References: Cucumis marinus Rondelet, Univ. Aquat. Hist, pars 

 altera Lugduni, cap. 27, 1555. 



Echinus coriaceus ad os fimbriatus Janus Plancus, De conchis minus 

 notis, Roma, 1760, p. 99, tab. VI, figs. D, E. ; De Incessu mari- 

 norum Echinor. etc., De Bononiensi scient. et art. instit atque 

 acad. commentarii, Bononiae, 1766, torn. V, part I, opuscula pg. 

 242, tab. II, figs. 1, 2. 



Holothuria pentacta L. Gmelin, Syst. Nat. ed. XIII, p. 74, part, 

 1788. 



Holothuria doliolum Lamarck, Hist. nat. d'anim. sans Vert., tome 

 III, p. 74, 1816.— Blainville, Diet. Sci. Nat., Paris, t. 21, p. 317, 

 1821; Man. d'Actin. Paris, p. 193, 1834. — Lamouroux, Encyclop. 

 torn. II, pi. 86, figs. 6, 7, 1824. — Delle Chiaje, Mem. sulla storia 

 e notom. degli anim. s. vert. Napoli, vol. Ill, pp. 67, 71, 80, 

 tab. 35, figs. 8, 9, 1828. — Lamarck, op. cit., II E. (Deshayes and 

 Milne Edwards), Paris, p. 443, 1840. 



Cladodactyla planci Brandt, Prodromus descript. Petropoli, p. 45, 

 1835. 



Cladodactyla doliolum Grube, M. Sars, Bidrag til Kundsk. om Mid- 

 delhav. Littoral-Fauna Christiania Nyt. Magaz. f. Naturv. Bd. 

 IX, Christiania, 1857, p. 120, pi. 1, figs. 18-23.— Heller, K. k. 

 zool. bot. Ges. Wien, p. 74, 1868. — Selenka, Beit. z. Anat, u. 

 Syst. de. Holoth. Zeitsch. f. wissensch. Zool., Bd. 17, Leipzig, 

 p. 348, taf. XX, p. 108, 1867. 



Cucumaria planci von Marenzeller, Verh. zool.-bot. Ges. "Wien, Bd. 

 XXIV, p. 30, 1874.— Ludwig, Mitth. zool. stat, Neap. Bd. I, p. 565, 

 1879. — Carus, Faun. Mediterranean, p. 107, 1885. — Lampert, Die 

 Seewalzen, p. 140, 1885. — Theel, Rept. Voy. "Challenger," Zool., 

 Holothuria, vol. XIV, p. 101, 1886. — Chadwick, Proc. Liverpool 

 Biol. Soc, vol. Ill, p. 180, 1889; idem, op. cit., vol. V, p. 81, 

 1891 (discusses spontaneous fission). — Bell, F. J., Cat. Brit. 



