152 Bulletin, Vanderbilt Marine Museum, Vol. IV 



Material examined: Three specimens, dredged in 100 fms., 9y 2 

 miles E. by S., V2 S. from Cape Bon Tunis, North Africa, July 19, 

 1927, by the" Ara." Two of these are quite large, the third being small. 



Color : The living sea-cucumber is brownish withlarge, white rounded 

 spots on the dorsal side ; the ventral surface is usually lighter. 



Life history : Unknown. 



Technical description: This species is large, attaining a body 

 length of 25 to 30 cm., the body flattened on the ventral side, forming 

 a distinct sole; the margin of its union with the body set with large 

 papillae forming a decided rim, which is continued anteriorly above 

 the ventrally situated mouth. The dorsal surface is ornamented with 

 large, nearly serially arranged tubercles, each of which terminates in 

 a conical papilla. The ventral surface has three definite series of 

 tube-feet. The calcareous deposits of the skin are of three types : tables 

 with a large, circular perforated disk, with the rods of the spire con- 

 nected by 3 to 5 sets of cross bars ; elongate flattened rods, and star- 

 shaped bodies, these latter being located chiefly in the radii, near the 

 longitudinal muscles. 



References : Pudendum regale Fabricius, Columna Aquat. XXVI, I. 



Holothuria regalis Cuyier, Le Regne Animal distribue suivant son 

 organization, t. IV, p. 22, 1817. — Sars, Medd. litt. Fauna, p. 96, 

 t. 2, figs. 78-81, 1857. Dujardin and Hupe, Hist. Nat. des Zooph. 

 et Echinod, p. 617, 1862. 



Holothuria triquetra Delle Chiaje, Descrip. anim. Invert. Sicilia, 

 vol. IV, p. 4; vol. V, p. 63, tab. 112, figs. 16, 17, tab. 113, figs. 

 1-7, tab. 136, fig. 4, 1841. 



Stichopus regalis, Ludwig, H., Mitt. Zool. Sta. Neapel, Bd. 1, p. 569, 



1879 (with extensive synonymy). — Perrier, Holothuriidae, Exp. 



Sci. du "Travailleur" et du "Talisman," p. 482, 1902.— 



Herouard, E., Res. Sci. Compag. "Princess Alice," Monaco, Fasc. 



XXI, p. 11, 1902 ; ibid, Fasc. LXVI, p. 10, 1923.— Koehler, R., 



Faune de France, Echinod, p. 182, fig. 138, 1921; Echinod. des 



Mers D'l'Europe, part 2, p. 237, pi. XVI, fig. 24, 1924.— 



Mortensen, Handbook, British Echinod., p. 391, fig. 232, 



233, 1927. 



Stichopus badionotus Selenka. 



Plate 98. 

 Type: Selenka 's type was collected in Florida and Acapulco (?) 

 and is deposited in the Museum of Comparative Zoology, Cambridge, 

 Massachusetts. 



