ELIOT : NUDIBEANCHIATA FROM CAPE VERB ISLANDS. 143 



4. P. angulata, Eliot. E. Africa. 



5. P. aurea, Eliot. E. Africa. 



6. P. rubescens, B, Malay Archipelago. 



Rochebruiie (Nouv. Arch, du Museum d'Hist. Nat. Paris, 1881, 

 ser. II, vol. iv, p. 263) has described a species from the Cape Verd 

 Islands as P. Sauvagei, though without any indication of its internal 

 characters It is probablj^ only ^ variety of F. crucis, which has 

 a green back, spotted with black, and black rhiuophores, whereas 

 P. Sauvagei is of a uniform green, with violet rhinophores. Both 

 have yellow branchiae. 



Peltodoris sp. 



Mr. Crossland's notes on the living animal are as follows : — 



" Dorid, yellow. Porto Praya. 



" Back covered with small papillae. 8 rather small, abruptly-ended, 

 dark red-brown gills. Rhinophores with a few red-brown dashes. 

 Colour deep yellow, with numerous small reddish brown blotches, 

 appearing to the naked eye deep orange. Under side nearly white. 

 Elongated in shape, with narrow mantle. Foot rather high." 



The single specimen is hard and stiff, rather flat, but the back 

 is somewhat arched. It is much bent, but the dimensions are — 

 length about 12 mm., breadth about 6 mm. 



The integuments are full of white, rod-like spicules, fairly straight, 

 and of various sizes. The back is covered with little spiculous tufts, 

 as in Rostanga Evansi, but lower and less conspicuous. The edges of 

 the rhinophorial and branchial pockets are not raised, but the sur- 

 rounding surface forms a sort of hillock. The foot is grooved in front, 

 but apparently not notched. The tentacles are small knobs. The eight 

 branchiae are dark browu, stout, short, scanty, and apparently bipinnate. 



No labial armature was found, and the labial cuticle seems clear and 

 transparent. The radula consists of 52 rows, of which the two 

 hindmost are in process of growth and hardly formed. Each row 

 contains 70-80 teeth on either side of the bare rhachis. The teeth are 

 hamate and very stout. The innermost are smaller. 



This specimen seems to belong to the genus Peltodoris, but is 

 hardly referable to either P. atromaculata (Mediterranean) or P. crucis 

 (Antilles). It is probably immature, and it is, perhaps, not worth 

 while to create a new species for it. 



Rostanga, Bergh. 



This genus resembles Geitodoris in many respects, but differs in 

 having a prostate and simply pinnate branchiae. The back is covered 

 with small tubercles, from which spicules project. Hitherto it has 

 been recorded only from cold and tempei-ate seas. The species are : — 



1. R. coccinea (Forbes). Atlantic and Mediterranean. 



2. R. perspicillata, Bergh. Mediterranean. 



3. R. pulchra, MacFar. California. 



4. R. rubicunda (Cheeseman). New Zealand. 



5. R. Evansi, n.sp. Cape Verd Islands. 



This new species is of a violet grey, but in all the others the 

 prevailing coloration is red. 



