Beiträge zu einer Monographie der Polyceraden. 161 



Lamellae mandibulares trianguläres, fortes. Badula angustior; 

 rhachis serie dentium spuriorum instructa; pleurae dentibus lateralibus 

 duobus majoribus, quorum externus major, et dentibus externis sat paueis (7) . 



Glans penis? 



1. I, lacera (Abildgaard). 



Hab. M. atlant. or. 



2. — ratnosa Verrill et Emerton. Verrill, Not. of — marine Fauna 



— of New. Engl. Nr. 2. Amer. Jouru. of sc. XXII, Oct. 1881, p.'sOl. 

 Hab. M. atlant. occ. 



6. Triopha Bgh. 

 Vgl R. Bergh, On the nudibr. gasteropod moU. of the North Pacific. Oc. 

 (Dali, Explor. of Alaska 1, art. 6) II, p. 261—266, pl. XIV, flg. 17—20 ; 

 pl. XV, flg. 1—10. 

 Forma corporis fere ut in Triopis sicut qiioque limbus frontalis, 

 margo dorsalis appendicibus nodosis vel breve ramosis; rhinophoria 

 retractilia clavo perfoliato; branchia paucifoliata foliolis tripinnatis; tentacula 

 auriformia. 



Lamellae mandibulares trianguläres e baculis minutis compositae. 

 Badula angustior; rhachis dentibus spuriis compluribus (4); pleurae 

 dentibus lateralibus majoribus compluribus (3—4) et serie (10—11) 

 dentium externorum. 



Glans penis armata. 



1. Tr. modesta Bgh. 



Hab. M. pacific. 



2. — Carpeitteri Stearns. 



Hab. M. pacific. 



7. Crimora Alder et Hanc. 

 Vgl. Alder and Hancock, Descr. of a new Gen. and some uew sp. of 



Naked. Moll. Ann. mgz. n. h. 3 S., X, 1862, p. 263—264. 

 Corpus limaciforme, limbo frontali cirrhis compositis, margine 

 dorsali cirrhis simplicibus ornato; rhinophoria retractilia clavo perfoliato; 

 branchia paucifoliata foliolis tripinnatis; tentacula tuber culiformia. 



Armatura labialis? Badula latiuscula; rhachis nuda; pleurae multi- 

 dentatae, dente laterali singulo majorihamato, dentibus externis du- 

 plicis ordinis, partim brevioribus, partim elongatis denticulatis. 

 Glans penis? 

 1. Cr. papillata Aid. et Hanc. 



Hab. M. atlant. (Guernsey). 



8. Thecacera Fleming. 

 Vgl Alder and Hancock, Monogr. of brit. nudibr. moll. part VI, 1854, 

 fam. 1, gen. 5; part VII, 1855, p. 44, fam. 1, pl 21a; pl. 46 supplem., 

 fig. 18—19. 



Z. B. Ges.B. XXXIII. Abli. 21 



