Bacillarieae, Striateliaceae, Lauderia. 771 



Hab. in superficie maris prope insulam Javam (Knoll, Cleve). 

 — Longit. 36 a., altit. 144 a., longit. processuum 24 a. 

 2. Moelleria antarctica Castrac. Diat. Challenger p. 98, t. 18, f. 8, 3093 

 Notarisia 1889, pag. 759. — Cuneata, majuscula; valvis ellipticis, 

 vix perspicue punctulatis et pseudo-nodulo centrali instructis; cin- 

 gulo costulato vel plicato, bipartito; processibus terminalibus pa- 

 rum productis, 



Hab. in mari antarctico (Exped. Challenger). 



LAUDERIA Cleve [1873] Diatoms of the Sea of Java p. 8 (Etym. a 

 claro diatomologo H. Scott Lauder). — Frustula cylindracea, an- 

 nulata, valvis orbicularibus prope marginem processibus numero- 

 sis brevibus piliformibus vel spinis instructis, sculptura subtilis- 

 sime punctata. 



Obs. Genus peculiare, hinc cum Stephanopyxide hillinc cum 

 Striatella similitudinem praebens. 



3094 



1. Lauderia annulata Cleve Diatoms of the Sea of Java p. 8, t. I, 

 f. 7. Sm. Sp. T. n. 207, Castrac. Diat. Challenger p. 89, t. 8, f. 7. 

 — Fere membranacea; frustulis e facie connectivali visis 24-75 

 fx. latis, 96 ,a. altis, superficie et membrana conoectivali punctis 

 numerosis minutissimis obsitis. 



Hab. ad superficiem maris prope insulam Javam, haud raris- 

 sime (Knoll). 



2. Lauderia elongata Castrac. Diat. Challenger p. 89, t. 9, f. 4, No- 3095 

 tarisia 1889, p. 758. — Cylindrica, annulata, 18 p. lata (ex icone), 

 4-pIo longior quam latior, per superficiem valde convexam termi- 

 nata; frustulis in seriem per apicum coronam cohserentibus. 



Hab. in mari insul. Philippiuarum (Exped. Challenger). — A 

 Lauderia annulata Cleve distincta. 



3. Lauderia pumila Castrac. Diat. Challenger p. 89, t. 9, f. 8, Nota- 3096 

 risia 1889, p. 759. — Frustulis annulatis, cylindricis, circiter 11 



a. latis (ex icone), triplo longioribus quam latioribus, punctulorura 

 corona marginali seriatim ornatis, 



Hab. ad insulas Philippinicas (Exped. Challenger), 



4. Lauderia mediterranea Perag, in BuII. Soc, Hist, nat. de Toulouse 3097 

 1888, p. 89, t. VI, f. 45, Notarisia IV, n, 16, 1889, p, 855. — Fru- 

 stulis cylindraceis, valde elongatis, 60 * 12, annulis 4 in 10 pi., in- 

 bricatis secus generatricem et punctis evidentibus obsitis, 



Hab. in sinu « Villefranche » in regione nicaeensi mediterranea 



