DOLABELLA. 153 



the middle of the animal's length, its borders contiguous, not capable 

 of being much separated. Posterior disk round, large, bounded by 

 a conspicuously fringed ridge. Entire surface of body bristling with 

 acute more or less elongated processes. 



Color, dark or bright-green. 



Shell solid, loosely coiled, covered outside with a strong yellow or 

 yellow and brown cuticle; sculptured with irregular, wavy wrinkles 

 of growth. Spire very heavily calloused above and at the inside 

 edges ; sinus very deep and very concave ; margin of growth very 

 convex, especially below ; back with a broad reflexed border along 

 the left margin, a narrow border along the edge of the sinus. Length 

 50, breadth 40 mill. 



Amboyna (Martyn) ; Moluccas (Rumph.) ; Timor (Peron) ; Wai- 

 qiou and Rawak, and Islet of Pangai-Modou, Tongatabu (Quoy & 

 Gaim.) ; Paramatta River (Angas), Port Jackson and Bellenger 

 River (Brazier), E. Australia; Dungeness and Darnley Is., Torres 

 Straits; Low I., Trinity Bay and Home Is., N.-E. Australia (Braz- 

 ier) ; Mauritius (Peron, Q. & G., Ad., et al.~) ; Reunion (Desh.) ; 

 Seychelles and Amirante Is. (Dufo) ; Natal (Krauss). 



Patella scapula MARTYN, Univ. Conch., iii, pi. 99 (17 ) ; Chenu's 

 reprint Bibliotheque Conchyliogique (1), ii, p. 26, pi. 34, f. 3. 

 Dolabella scapula ANGAS?, P. Z. S. 1867, p. 227. ? Doris verracosa 

 GMEL., Syst. Nat. (13), p. 3103 (1788). BARBUT, The Genera 

 Vermium, pi. 4, f. 1. Dolabella callosa LAM., Syst. An. s. Vert. 

 (1801), p. 62 (founded on Rumphius, Mus., pi. 40, f. 12). Dolabella 



CUVIER, Ann. du Mus. d'Hist. Nat., v, p. 437, pi. 29, f. 1-3 



(1804). D. rumphii Cuv., Regne Anim., ii, p. 398, pi. 34, f. 1. 

 LAM., An. s. Vert, vi, (2rne pt.), p. 41 (1822) ; and edit. DESH., vii, 

 p. 699 (1836). ADAMS & REEVE, Zool. Samarang, Moll., p. 65, pi. 

 18, f. 4. MARTENS in Mobius' Beitr. zur Meeresfauna Maurit., p. 

 306. KRAUSS, Die Stidafrik. Moll., p. 72. SMITH, Zool. coll. H. 

 M. S. Alert, p. 89. BRAZIER, Proc. Linn. Soc. N. S. W., ii, p. 88. 

 Aplysia rumphii RANG, Hist. Nat. Aplys., p. 46, pi. 1. QUOY 

 & GAIMARD, Voy. de 1'AstroL, Zool., ii, p. 303, pi. 23, f. 4, 5. 

 Dolabella peronii BLAIJSV., Diet. Sci. Nat., xiii, p. 395 (1819); 

 Manuel de Malacol., p. 473. 



Allied to D. hasseltii, but the dorsal slit is more anterior and the 

 color nearly uniform. It seems to be very widely distributed over 

 the Indo-Pacih'c life-area. It is eaten in Ambovna. 



