NUDIBRANCHIA

Dayrat, B. & Tillier, S., 2002, Evolutionary relationships of euthyneuran gastropods (Mollusca): a cladistic re-evaluation of morphological characters, Zoological Journal of the Linnean Society 135 (4), pp. 403-470 : 459

NUDIBRANCHIA

Tritonia Cuvier, 1803 (Pelseneer, 1894; Odhner, 1936; Alder & Hancock, 1845–1855; Vestergaard & Thorson, 1938; Marcus, 1959, 1961; Thompson, 1961a, 1962, 1976; Marcus & Marcus, 1967b, c; Schmekel, 1970; Gosliner & Ghiselin, 1987). (43–51) The suboesophageal, supraoesophageal and abdominal ganglia are absent (Hoffmann, 1939) and do not appear during development (Thompson, 1962). We code the visceral loop as {(CPl)-(PlC)}. (48) The subcerebral commissure (Hoffmann, 1939) is either present (in Tritonia hombergi ) or absent (in Tritonia plebeja ).

Hancockia Gosse, 1877 (Hoffmann, 1939; Marcus, 1957; Schmekel, 1970). We code the visceral loop as {(CPl)-(PlC)}.

Archidoris Bergh, 1878 (Alder & Hancock, 1855; Eliot, 1910; Prenant, 1925; Pruvot-Fol, 1934; Hoffmann, 1939; MacGowan & Pratt, 1954; Thompson, 1966a; b, 1976; Kay & Young, 1969; Edmunds, 1971; Kress, 1971; Schmekel & Weichter, 1973; Schmekel & Portmann, 1982). (28) The blood gland on the anterior aorta is probably homologous with that of other euthyneurans (Eliot, 1910; Schmekel & Weichter, 1973). (43–51) We code the interrupted visceral loop as {(CPl)…(PlC)} (Alder & Embleton, in Alder & Hancock, 1855; Eliot, 1910; Hoffman, 1939).

Chromodoris Alder & Hancock, 1855 (Schmekel, 1970; Rudman, 1973, 1977, 1984; Bertsch, 1978; Schmekel & Portmann, 1982). (1) The shell is considered here as heterostrophic (Thompson, 1961b). (28) The blood gland (Rudman, 1978) is probably homologous with that of other euthyneurans.

Armina Rafinesque, 1814 (Bergh, 1866; Eales, 1938; Marcus & Marcus, 1960b, 1966, 1967b, c; Schmekel & Portmann, 1982; Miller & Willan, 1986). (1) The shell is considered here as heterostrophic (Hurst, 1967). (43–51) {(CPl)…(PlC)} (Bergh, 1866). (59–60) The albumen and mucous glands either surround the pallial oviduct (Marcus & Marcus, 1967b, c) or lie in the female gland mass (Miller & Willan, 1986).

Janolus Bergh, 1884 (Marcus, 1958; MacFarland, 1966; Miller, 1971; Gosliner, 1981b, 1982; Miller & Willan, 1986; Schrödl, 1996). (43–51) We code the visceral loop as {(CPl)-(PlC)} (Hoffmann, 1939).

Facelina Alder & Hancock, 1855 (Pelseneer, 1901; Loyning, 1922; Odhner, 1939; Thorson, 1946; Macnae, 1954; Marcus, 1958; Edmunds, 1969, 1970; Gosliner, 1979; Schmekel & Portmann, 1982). (1) The shell is considered here as heterostrophic (Pelseneer, 1901; Thorson, 1946). (43–51) {(CPl)-(PlC)} (Hoffmann, 1939). (57–60) The distal female gland mass is ambiguous (Macnae, 1954; Marcus, 1958; Schmekel & Portmann, 1982).

Aeolidia Cuvier, 1798 ( Aeolidia papillosa = Aeolis papillosa ) (Alder & Hancock, 1845–1855; Pelseneer, 1894; Hecht, 1896; Eliot, 1910; Russell, 1929; Hoffmann, 1939). (1) The shell is considered here as heterostrophic (Pelseneer, 1911). (43–51) We code the visceral loop as {(CPl)-(PlC)} (Russell, 1929).