128 



BULLETIN 



['HE BUREAU OF PTSHERIES. 



Cadiina flavomaculata may be readily recognized by its peculiar coloration, the rich brownish 

 black rhinophores standing out strongly against the light yellowish white of the body. It is an 

 extremely sluggish animal in confinement, scarcely moving from its place in the aquarium, even uihUm- 

 the most favorable conditions. 



The 2 new species of Cadiina here described may be easily distinguished in life from any Dthcr ot 

 the Monterey Dorididje by their striking coloration. But 1 other species of this genus has been t:ikiii 

 in the Pacific Ocean, Cadiina pacifica Bergti, from Alaska. The subjoined tabulation of the raduhi- i>t 

 the 3 Pacific, together with the European species, will aid in distinguishing them. 



Radulse of species of Cadiina. 



Species. 



Formula 



First pleural tooth. 



C. repanda Alder & Hancock . 



C. paeiflca Bergh 



C. marginata MacFarland 



C. flavomaculata MacFarland 



29-30,1,29-30 

 33,1,33 

 47,1,47 

 23,1,23 



4-6 nearly equal den- 

 ticfes. No median 

 hook. 



3^ denticles on inner 

 side; 7-9 denticles 

 on outer side. 



.5-6 denticles on in- 

 side: 6-7 denticles 

 on outside. 



3 denticles on inside; 

 6-7 on outside. 



Up to 12. 

 Up to 1.5. 



Subfamily VII. KENTRODOEIDINi;. 



Body rather soft, somewhat depressed, notseum very minutely granulated, pallial margin wide; 

 tentacles conical; branchia; tripinnate; foot rather wide, its anterior margin with a deep sulcus, the 

 upper lip deeply emarginate. Labial armature none. Rhachis of radula naked, pleurae niultidentate, 

 the teeth hooked. Penis armed with a .■^tylet or unai'meil; vestibular gland and dart present or not. ; 



Subfamily VIIL PLATTDOEIDINai. 



Body coriaceous, rigid, flattened, fragile, its outline usually oval or rounded; notteum smooth or 

 most minutely granulated, pallial margin wide; branchial opening usually few-lobed, stellate; tentacles 

 finger-like; anterior margin of foot bilabiate, the upper lip deeply notched. Labial armature none. 

 Ehachis of radula naked, pleurae multidentate, the teeth hooked. Prostata large. 



Subfamily IX, OHEOMODOEIDINi;. 



Body elongate, compressed, soft; brilliantly CDlored, often striped or spotted; notwum nearly 

 always smooth; mantle margin broad in front and behind, the rest quite narrow; tenta<^le8 small, 

 conical, often as if everted; branchial leaves usually simply pinnate. Labial armature strong, of very 

 minute hooks. Rhachis of radula very narrow, often with minute compressed spurious teeth; pleune 

 multidentate, teeth hooked, often with denticulate outer margin, the first one denticulate on both 

 margins. No true stomach. Penis unarmed. ■ 



Genus 8. CHROMODOEIS Alder and Hancock. 



Chromodoris Alder and Hancock, Mon. Brit. Nudibr. Moll., Pt. VII, 1856, p. XVII.— Bergh, Neue Nacktschnecken der 

 Sudsee, III, Jour. Mus. Godeffroy, H. VIII., 1875, p. 72; H. XIV., 1878, p. 1. Unters. d. Ch. elegans u. villafranca. 

 Mai. Blatter, XXV, 1878, p. 1. Neue Chromodoriden, Mai. BUitter N. F., I, p. 87. Mai. Unters., XI, 1877, p. 464; 

 Sup. H. 1, 1880, p. 14; II, 1881, p. 81; XV, 1884, p. 04; XVI, 2, p. 831; XVII, 1890, p. 929, 974. Beitriije z. Kennt. 

 d. japan. Nudibr., II, Verb. d. k. k. zool.-bot. Ges, Wien, XXXI, 1881, p. 219. Report on the Nudibranchiata, 

 Challenger Reports, X, 1884, p. 64. Rep. on the Nudibranchs, Bull. Mus. Comp. Zool. Harvard, XIX, 1890, p. 160. 

 System, der Nudibr. Gasteropoden. 1892, p. 112. Ueber einige verkannte und neue Dorididen, Verb. d. k. k. zool.- 

 bot. Gesellsch. Wien, XLIII. 1893, p. 415. Die Opisthobranchien, Bull. Mus. Comp. Zool., XXV, 10, 1894, p. 190. 

 Nudibranches et Marsenia provenant des campagnes de la Princesse Alice, Res. Camp. Sci. Albert I" de Monaco, 

 XIV, 1899, p. 17.— V. Jhering, Beitr. z. Kenntniss d. Nudibr. d. Mittelmeres, Mai. Blatter, N.F. II., 1880, p. 1. 



