304 THE DOLABELLINAE. 
The genus Dolabella so far as is known is confined to the Indo-Pacific 
area, ranging westward to the Red Sea and the Cape of Good Hope, eastward — 
to the Gulf of California, the West coast of Mexico and the Gulf of Guayaquil, 
and southward to New South Wales. Quite a number of species have been 
described, most of them in an incomplete manner, and all are in need of careful 
detailed study and revision. Pending this the following chronological list 
includes all apparently valid species, though some of them may be found later 
to be but varieties of a few widely distributed forms. 
1. Dolabella scapula (Martyn), 1786. 
Patella scapula Martyn, Univ. conchol., 1786, 3, pl. 99. ; 
?Doris verrucosa GMELIN, Syst. nat., ed. 13, 1791, pt. 6, p. 3103; Barsut, Genera Vermium, 1788, 2, — 
pl. 4, f. 1. 
Dolabella callosa LAMARcK, Syst. anim. sans vertébres, 1801, p. 62. 
Dolabella sp. Cuvier, Ann. Mus. hist. nat., 1804, 5, p. 437-440, pl. 29, f. 1+4. 
Dolabella rumphii Cuvier, Régne anim., 1817, 2, p. 398, pl. 34, f. 1; Lamarck, Hist. nat. anim. sans 
vertebres, 1822, 6, pt. 2, p. 41; Ed. 2, 1836, 7, p. 699; Krauss, Siidafrikanischen moll., 1848, p. 72; 
Apams and Reeve, Zool. Samarang. Moll., 1848, p. 65, pl. 17, f. 4; Brazier, Proc. Linn. soc. N. 8. 
W.., 1878, 2, p. 88; Martens, Moebius’s Beitr. meeresfauna Mauritius, 1880, p. 306; Sarra, E. A., 
Rept. zool. coll. H. M. S. Alert, 1884, p. 89; Bere, Siboga expedition. Opisthobranchiata, 
1905, p. 13, taf. 7, f. 22-40; taf. 8, f. 1-7; Vaysstire, Ann. Fac. sci. Marseille, 1906, 16, p. 51, pl. 1, 
f. 1-5; Cxiesstn, Martini and Chemnitz’s Syst. conchylien-cabinet, 1899, 1, 8, p. 24, taf. 11, f. 7. 
Aplysia rumphii: Cuvier, Rane, Hist. nat. aplysiens, 1828, p. 46, pl. 1; Quoy and Garmarp, Voy. — 
Astrolabe. Zool., 1832, 2, p. 303, pl. 23, f. 4, 5. 2 
Dolabella peronti BuarnviLue, Dict. sci. nat. 1819, 13, p. 395; Manuel malacol., 1825-1827, p. 472, pl. — 
TO tee ke 
Dolabella scapula Martyn, ApAms, H. and A., Gen. recent Moll., 1854, 2, p. 32, pl. 59, f. 3, 8a; ANGAs, 
Proc. Zool. soc. London, 1867, p. 227; Piuspry, Tryon’s Manual conch. 1896, 16, p. 152, pl. 26, 
f. 26-28; pl. 27, f. 29-30; Farran, Rept. Ceylon pearl oyster fisheries, 1905, no. 21, p. 354, pl. 5, f. 
16, 17; Hep.ey, Proc. Australasian assoc. adv. sci., 1910, p. 371. 
Hasirat:— Widely distributed in the Indian Ocean and Western Pacific — 
areas. 
2. Dolabella ecaudata (Rana), 1828. 
Aplysia ecaudata Rana, Hist. nat. aplysiens, 1828, p. 47, pl. 2. 
Aplysia truncata Rana, Hist. nat. aplysiens, 1828, p. 47. 
Aplysia tongana Quoy and Garmarp, Voy. Astrolabe. Zool., 1832, 2, p. 305, pl. 23, f. 6, 7. 
Dolabella tongensis Gray, Figures moll. anim., 1850, 4, p. 97, pl. 137, f. 1. 
Dolabella ecaudata Rane, Brazier, Proc. Linn. soc. N.S. W., 1878, 2, p. 89; Pitspry, Tryon’s Manual 
conch., 1896, 16, p. 157, pl. 25, f. 4, 5; pl. 66, f. 11, 12, 13; Cxesstn, Martini and Chemnitz’s 
Syst. conchylien-cabinet, 1899, 1, 8, p. 25, taf. 10, f. 5; Hepiey, Proc. Australasian assoc. adv. 
sci. 1909, p. 371. 
Dolabella tongana Quoy and Gamarp, Mazzarelli and Zuccardi, Boll. Soc. nat. Napoli, 1889, 3, p. 120; 
Mem. Soc. Ital. sci., 1890, ser. 3, 8, p. 9, tav. 1, f. 3, 8, 12, 14, tav. 2, f. 3, 6, 13. 
Hasitat:— Moluccas, Philippines, Tonga Islands, Samoa, N. E. Australia, 
