Neithella notabilis (Münster in Goldfuss, 1833)
GOLDFUSS, A. 1833-1840. Petrefacta Germaniae tam ea, quae in museo universitatis regiae Borussicae Fridericiae Wilhelmiae Rhenanae servantur quam alia quae cunque in museis hoeninghusiano, muensteriano aliisque extant, iconibus et descriptionibus illustrata. Zweiter Theil, 312 p., pls. 1-199. Arnz & Co., Düsseldorf. [p. 56, pl. 93, figs. 3a-c]
1833 Pecten notabilis Münster in Goldfuss, 1833
1847 Janira longicauda Orbigny, 1847
1841 Pecten digitalis Roemer, 1841
1847 Janira digitalis Orbigny, 1847
1847 Janira cometa Orbigny, 1847
1895 Janira johannisboehmi Tiessen, 1895
1896 Neithea almusana Pethö, 1896
1939 Pecten (Neithea) hourcqi Collignon, 1939
1847 Janira longicauda Orbigny, 1847
1841 Pecten digitalis Roemer, 1841
1847 Janira digitalis Orbigny, 1847
1847 Janira cometa Orbigny, 1847
1895 Janira johannisboehmi Tiessen, 1895
1896 Neithea almusana Pethö, 1896
1939 Pecten (Neithea) hourcqi Collignon, 1939
A. Goldfuss, 1833-1840, plate 93.
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«Fig. 3. a. b. Valva sinistra. Die linke Schale.
c. Pars eius aucta. Ein vergrössertes Stückchen.» Pecten testa ovato-oblonga inferne sexangulata, valva sinistra convexo-gibba concentrice lineata, costis senis elatis interstitiisque concavis radiatim lineatis, auriculis magnis acutis. — Ex arena viridi Westphaliae. M. M.
Dieser Pectinit steht noch mit den vorhergehenden in nächster Verwandtschaft. Wir kennen nur die linke Schale desselben, welche ebenfalls hoch gewölbt ist, einen übergebogenen Wirbel, 6 hohe Rippen und einen sechseckigen untern Rand hat. Die Rippen sowohl als die tiefen Zwischenfurchen sind mit gleichförmigen, ausstrahlenden Linien dicht besetzt, über welche feine concentrische gedrängt und wellenförmig hinweglaufen. Die Ohren sind, wie es scheint, lang und zugespitzt. — Findet sich im Grünsande bei Essen.»
GEORG VON MÜNSTER IN AUGUST GOLDFUSS, 1833
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«Synonymy. — According to ROEMER the difference between his Pecten digitalis and N. notabilis (MUENSTER in GOLDFUSS) is, that in the former species, the rib tops are rounded instead of angular. As stated above this is not a differential characteristic, particularly not if one remembers that Saxonian Middle Cretaceous Pectinids are, in a very large proportion Steinkernen. The many Neithella specimens which I studied from these Cretaceous strata all obviously belonged to the same species.
N. Iongicauda (D'ORBIGNY) is supposed to differ by having broader ribs and in D'ORBIGNY's figure the valve has very broad ribs indeed. Whether this is a specific, differentiating characteristic, as J. ROGER thinks, I strongly doubt. GEINTZ (1870, pl. 45, figs. 10-17 a) figures a complete series of specimens, which show all transitions between specimens with very narrow ribs and broad intervals, and specimens with very broad ribs and narrow intervals. All those specimens come from the same area and have the same stratigraphical age. The specimens with very narrow ribs are cores and give a false impression of the species. The proportion U.P.D./W. is according to ROGER different in N. longicauda from what it is in N. notabilis; lhe state of the lectotype of N. Iongicauda is such that sufficiently precise measurements cannot possibly be taken and so no comparison is possible. D'ORBIGNY differentiated his Janira cometa from N. notabilis because of different rib numbers. J. ROGER proved this to be a changing character. The fact that J. ROGER finds, among the type-series of J. cometa D'ORBIGNY specimens belonging to N. cometa, N. longicauda and N. digitalis certainly proves that recognizing the different "species" is such a difficult job that all divisions are arbitrary and that the logical solution is to consider them all synonyms of N. notabilis. Janira johannisboehmi TIESSEN is kept in the VON HUMBOLDT University in Berlin; as supposed by WOODS it is really a synonym of. N. notabilis. Pecten (Neithea) hourcqi M. COLLIGNON is, as far as can be judged without seeing the types, identical with N. notabilis. For a definite decision the typematerial should however be studied.» DHONDT, A. V. 1973. Systematic revision of the subfamily Neitheinae (Pectinidae, Bivavia, Mollusca) of the European Cretaceus. Mémoires du Institute Royal des Sciences Naturelles de Belgique, 176: 1-101, pls. 1-5. [p. 68, 69]
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Neithea (Neithella) notabilis (G. von Muenster in Goldfuss, 1833); A. V. Dhondt, 1973, Systematic revision of the subfamily Neitheinae of the European Cretaceus, plate 4, figure 2.
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