DORIDOEIDES GARDINERI. 293 
radula is about 36+1+36 and the hermaphrodite gland is 
separate from the liver mass. Small (12 mm.). 
Heterodoris, Verrill.! Imperfectly described. Form 
like Triopa; no gills; back bearing papille and a longi- 
tudinal crest; rhinephores retractile; anus lateral (?). Radula 
168.0.168. Jaws? Genitalia? Moderate size (28 mm.). 
This little-known form is possibly related to the Polyceradee. 
Charcotia, Vayssiere.” Resembles the Tritoniidee in 
form. Back tuberculate. Rhinophores not perfoliate and 
not retractile. A membranous expansion round the mouth. 
Jaws present. Radula 1+1+1. Liver divided into three 
glandular masses, but not passing (it would seem) outside 
the main body-cavity. Hermaphrodite gland mingling with 
the posterior liver mass. Small (14 mm.). 
Phyllirhoide. A family of pelagic nudibranchs with 
no appendages except rhinophores. Jaws present. Radula 
varies from 14+1+1 to 11+1+11. Three or four hepatic 
coeca, not ramified. Hermaphrodite gland in several sepa- 
rate lobes. 
Dirona,® MacFarland. Molidiform in appearance, but 
the papille do not contain hepatic diverticula, and there 
are no branchial tufts. Liver trilobed but solid, wholly 
contained in body-cavity and not ramified. Hermaphrodite 
gland consisting of several separate lobes. Anus far back 
on right side. Jaws: radula2+1+2. Small (19 mm.). 
Pleuroleura, Bergh* (=Dermatobranchus, v. Has- 
selt). Alhed to Pleurophyllidia, from which it differs only 
in having no branchial lamelle beneath the mantle. Shape 
quasi-doridiform, but rhinophores and head parts modified, 
perhaps in connection with burrowing habits. Jaws: radula 
varying from 4+1+4 to 41+1+441. Liver ramified, and 
1 «Trans. of the Connecticut Acad.,’ vol. 2, 1882, pp. 548-9. 
* In ‘Expédition antarctique frangaise du Dr. J. Charcot,’ ‘ Mollusques 
nudibranches et Marséniadés,” 1906, pp. 27—31. 
3 See Cockerell and Eliot, ‘‘ Notes on a Collection of Californian Nudi- 
branches,” ‘Journal of Malacology,’ 1905, pp. 45—48. 
4 See especially Bergh, ‘ Die Lelguisolleumaiete, in ‘Zool. Jahrb. System,’ 
3 Band, 3 Heft, 1888, p. 348 ff. 
