15 

 2. Septaria tessellata Lamarck, var. lincata Lamarck. 



LAMARCK. Encycl. Meth. PI. 456, fig. 2 [lincata). 



An. s. vert. Ed. Desh. VIII, p. 564 [lincata). 



v. Martens. Martini-Chemn. Conch. Cab. Ed. II, Navicella, p. 38, PI. 8, fig. 7 — 9. 



Stat. 33. Bay of Pidjot, Lombok; river. 1 Spec. 



The only specimen, which is not adult, is not quite as narrow as the figure of v. Martens, 

 but much more so, as his figs 1 and 3 of the same plate, which v. Martens names var. compressa 

 with the subvar. lincata. 



Fam. Phenacolepidae. 

 Phenacolepas Pilsbry. 



1. Phenacolepas galathea Lamarck. 



Lamarck. An. s. vert. Ed. Desh. Vol. 7, p. 539 [Patella). 

 DELESSERT. Recueil de Coq. PI. 23, fig. 10. 

 CHENU. Manuel de Conch., fig. 2815. 



Stat. 115. East side of Pajunga-Island, Kwandang-bay. Reef. 1 Spec. 



The only specimen has a length of 1 2 Mill. but has no juvenile appearance, though it 

 is considerably smaller than Lamarck's specimens, which are described as having a leno-ht of 

 7 to 8 lines, the shell is rather strong and thick. 



Pilsbry has named the genus Phenacolepas (The Nautilus, Vol. V, 1891, p. 88) the name 

 Scutcllina being tvvice preoccupied. Since he has given (The Nautilus, Vol. XIV, 1900, p. 61) 

 a list of the species, "more complete than that in the Manual of Conchology". In this list 

 Ph. galathea is mentioned, but not in the Monograph. Scutellina aspertclata A. Adams and 

 costata A. Adams, according to E. A. Smith, should be synonyms. Adams however has only 

 mentioned them in his "Genera of Shells" p. 461, but they have not been described. The shell 

 resembles much " Patella pectinata" Born, but may be distinguished at once, by the position 

 of the muscle-scar. 



2. Phenacolepas radiata n. sp. PI. I, fig. 1. 



Stat. 282. Between Nusa Besi and the N.E. point of Timor. Reef. 1 Spec. 



Shell small, depressed, oval, inaequilateral, yellowish, with scarcely elevated, distant, 

 brown, radiating ribs, crossed by faint, irregular, concentric striae, more conspicuous at large 

 intervals. Apex posterior, placed at nearly n / 13 of the length, obtuse, compressed, directed to 

 the left, brown (perhaps by erosion). Front and side slopes convex, posterior slope concave. 

 The shell is covered by a yellowish epidermis. Interior brown, yellow in front and towards the 

 margin, with brown radii. Muscle-scar open in front. 



Long. 3, lat. 2 X \ V alt. 1 Mill. 



!5 



