155 



Jen. Zeitschr. f. Naturwiss. Bd. 38, N. F. Bd. 31, 

 Pag. 473. 



74. 1894. WiNKLEY, H. W. Eastport Notes. 



Nautilus, Vol. 8, 1894-1895, Pag. 78. 

 Tonicella marmorea coerulea, nov. var. 



75. 1904. V. Wissel, C. Pacifische Chitonen. 



Zool. Jahrb. Syst. Bd. 20, Heft 6, Pag. 591. 



19 Forms. 



OnüJiochiton marmoratus, nov. spec. 



76. 189Ö. ZoGRAPP, N. Remarque sur une forme interessante et assez 



rare d'Amphineura Po\jp\a,cophoYSi (Cryptochiton stel- 

 leri). Mem. Soc. Zool. Franee, Vol. 9, Pag. 254. 



II. Lepidopleurus africauus, nov. spec. (Fig. 1 — 9). 



In the Collection of the Zoological Museum at Utrecht I found 

 a fine specimen of Lepidopleurus, which, no doubt, belongs to a 

 new species. It was found at Oran at the North coast of Africa 

 in the Mediterrauean. This animal has a length of 7 m.M. and 

 a breadth of 3 m.M. The colour of the valves is white with 

 bright yellow-brown margins and grooves of the same colour on 

 the central areas of the middle valves. At the apex of the seventh 

 and at the mucro of the eighth valve black-brown spots occur. 

 The narrow girdle, which is strongly eroded and turned over in 

 downward direction has a yellow brown colour (Fig. 1). 



The first valve is semicircular and shows many radiating fine 

 ribs, composed of minute tubercles, which become larger towards 

 the outer margin. The apex is smooth (Fig. 3). 



The second valve has a straight hinder margin and small 

 triangular sutural laminae. The diagonal rib is distinct and the 

 lateral areas are a little raised. No distinction eau be made be- 

 tween jugal and pleural regions. The central area shows a large 

 number (at least 36) of district and strong ribs (Fig. 4). Under 

 the microscope it is seen, that the latter consist of small cylin- 



