MacFarland Preliminary Account of Dorididse. 43 



7. Cadlina marginata sp. nov. 



Type from Monterey Bay, Calif. No. 181,287, U. S. National Museum. 



Body elongate, elliptical, somewhat depressed; dorsum firm, covered 

 everywhere with low tubercles; general ground-color yellowish white, 

 the tubercles tipped with lemon yellow surrounded by a narrow ring of 

 white forming the center of small polygonal areas into which the dorsum 

 is divided ; mantle margin and lateral and posterior edges of foot edged 

 with a narrow band of lemon-yellow, tips of rhinophores, branchiae and 

 their sheaths of the same color. 



Mantle margin wide, broadly overlapping the foot ; foot narrow, nearly 

 linear, its anterior end bilabiate, the upper lip notched, thin, the lower 

 one thick ; oral tentacles short, triangular, flattened, auriform with distinct 

 external groove; rhinophores perfoliate with 16 to 18 leaves, margin of 

 sheath bearing low tubercles tipped with yellow; branchial plumes 6, 

 bipinnate, the sheath tuberculate. 



Dimensions of large individual : length, 45 mm. ; width, 22 mm. ; height, 

 8 to 10 mm. 



Labial armature a broad yellow band of bifid hooks, quadrangular below, 

 narrowing laterally and interrupted above; radula broad with shallow 

 median groove; teeth in 90 rows; dental formula 47-1-47; rhachis of 

 radula with a single -series of median teeth, erect, hooked, the tips divided 

 into 4 to 6 nearly equal small blunt denticles; pleurae 47, the innermost 

 one strongly hooked with 3 large denticles on its inner and 6 or 7 smaller 

 ones on its outer margin ; the remaining pleurae of much the same 

 shape, the tip becoming longer and more pointed, the denticles limited to 

 the outer margin alone and increasing in number to 12; the outermost 

 pleurae diminishing in size, being finally reduced to compressed jagged 

 slightly conoave plates. 



Glans penis short, bluntly conical, armed with hooks. 



Found in rocky tide-pools of the fucoid zone all along the southern coast 

 of Monterey Bay. Not rare. 



8. Cadlina flavomaculata sp. nov. 



Type from Monterey Bay, Calif. No. 181,279, U. S. National Museum. 



Body elongate, elliptical, almost linear, depressed, bluntly rounded at 

 the ends, less so behind than in front; dorsum thickly set everywhere 

 with low rounded tubercles. General color yellowish white ; on each 

 side of dorsum a row of 7 to 10 small lemon yellow spots borne upon low 

 tubercles, the first one of these spots just outside of and behind the rhino 

 phores, the last one outside of and usually behind the branchial plumes ; 

 rhinophores black, brown or brownish-yellow, very conspicuous against 

 the pale dorsum ; mantle margin thin, broadly overlapping the foot except 

 behind ; foot linear, bluntly pointed behind, in front abruptly rounded, 

 bilabiate, lower lip fleshy, thick, the upper one thinner; tentacles short, 

 flattened, bluntly auriform, the external margin grooved; rhinophores 



