136 
NAUTILOIDEA. 
me as to wliether Wahlenberg’s types of “ 0. duplex ” and “ 0. 
commune^’ still existed in the museum at Upsala, where some of his 
types are preserved. But they could not he found, so that there is 
now no possibility of identifying Wahlenherg's species. Dr. Lind- 
strom informed me, moreover, that he had “ searched in vain ” in 
the Hisinger Collection ” preserved in the Eoyal Museum, Stock- 
holm, for the original specimens of “ 0. duplex ” and “ 0. commune ” 
figured by Hisinger in the ‘ Lethaea Svecica.’ 
Under these circumstances it is desirable, as Dr. Lindstrdm has 
suggested to me, that Wahlenberg’s names should be relinquished, 
and new ones imposed upon all Swedish and Russian Eudocerata 
which have hitherto fallen under them. This task has been already 
partly accomplished by such able palaeontologists as Dewitz and 
Schroder in Germany and Holm in Sweden, and, so far as I am 
aware, there remain now very few forms requiring emendation. 
The collection of Swedish specimens of Endoceras in the British 
Museum has been greatly enriched within the last few years through 
the munificence of the late Mr. J. E. Lee, of Torquay, and it is 
principally upon this new material that the following description 
was based. I have named the first species after the illustrious 
Swedish naturalist Wahlenberg. 
Endoceras Wahlenbergi, Foord. 
1732. Species vi. Orthoceratites siphone ad peripheriam j^osito crassiovi, 
&c., Breyuius, Dissertatio physica de Polvthalamiis, p. 34, tab. iv. 
fF. 4-6. 
1759. Orthocerati recti ... in Dahlia reperti. De rariori quadam 
Orthoceratitis Specie, in Suecica reperta, tractatus, &c., Nicholas de 
Himsel, Phil. Trans, vol. 1. pt. 2, p. 692, tab. xxiii. f. a. 
? 1775. Orthoceratites, Walcli and Knorr, Monumens des Catastrophes 
de la Terre, tom. iii. suppl. p. 140, tab. iv e. f. 1. 
1837. Orthoceratites duplex, Hisinger, Lethsea Svecica, p. 28, tab. ix. 
f. 1. 
? 1855. Orthoceras duplex, Barrande, in Leonhard and Bronn’s Neues 
Jahrb. p. 264, Taf. iii. if. 11, 11*. 
1857. Orthoceras commune. Boll, Archiv fiir die Naturkunde von Meck- 
lenburg, p. 12, Taf. ii. fi*. 4, a, h (not of Hisinger). 
? 1861. Orthoceras duplex, Hoemer, Fossile Fauna von Sadewitz, p. 60, 
pi. vii. ff. 2, a, b. 
1866. Endoceras (Orthoc.) duplex, Barrande, Syst. Sil. de la Boheme, 
vol. ii. Texte iii. 1874, pp. 709, 713, pi. ccxxxiii. f. 9, pi. ccccxxviii. 
ff. 9-12. 
? 1869. Orthoceras duplex {giganteuni), Karsten, Die Verstein. des 
Uebergangsgebirges in den Gerollen der Herzogthiimer Schleswig 
und Holstein, p. 49, tab. xvii. ff. 6, a, b. 
