Species nondum figuratae. 



1. Pecten Jickelii Dunker. 



Testa solidula inaequivalvis tumida, subaequilatera, paululum obliqua, costis 18 re- 

 gulärster tricarinatis oblique striatis instructa; interstitia costis angustiora transveraim sub- 

 tiliterque striata; umbones tumidi, inaequales; umbo valvae dextrae prominulus; color 

 albo marmoratus et variegatus. 



Alt. et lat. 27, crass. 17 Mm. 



Pecten trifidus Dunker Malacozool. Bl. vol. 24 p. 72. 

 — Jickelii Dunker Jndex moll. mar. japon. p. 241. 



Hub. mare Japonicum. Exslal in coli. Loebbeckeana (?). 



Structura costarum singulari trifida valvisque tumidis insignis, habitum Pectinis ven- 

 tricosi Sow. nondum adulti prae se fert. Dkr. 



Ich habe das Original in der Löbbecke'schen Sammlung nicht auffinden können; 

 eine Abbildung exislirt noch nicht. 



2. Pecten Bernardi Philippi- 



P. testa parvula, solida, inflata, inaequivalvi; alba, strigis raris rufis picta; extremi- 

 tate postica productiore, acutiore; costis 16 — 17, interstitia fere ter aequantibus planis, 

 tricarinatis in utraque valva subaequalibus, auriculis inaequalibus, obliquis, costatis; lunula 

 areaque distinctis; cardine dentato. — Phil. 



Long. 10'", alt. 9V", crass. 7"'. 



Species forma turgida el sculptura valde insignis. Ambitus, demtis auriculis, 

 fere idem alque in P. inaequivalvi Sow., valva inferior fere sesquies magis tumida 



