42 G. LINDSTRÖM, HELIOLITID^. 



1876. Heliolites raegastoma, ROMINGER. Geol. Survey of Michigan, vol. III, pt. I[, p. 11, pl. 1, f. 3. I 



have received specimens from tlie late Dr ROMINGER, found at Poiiit Detoiir, 

 Michigan, whioh quite correspond with the variety from the highest Gotland strata 

 with large calicles. 



1878. Heliolites megastomvis (!) R. ETHERIDGE S:r. Paliieontology of the coasts of the Arctic Lands etc. Qu. 



Journ. Geol. Soc. vol. 34, p. 581. Belongs possibly to this species, but the 

 description is too short. 



1878. Heliol. interstincta, QUENSTEDT. Petref.-Kunde Deutschlands !■= Abtheil. 6' Bd, p. 142, pl. 148, fig. 25. 



1879. Hel. megastoma, NiCHOLSON. Tabulate Corals p. 244, pl. XII, f. 2, 2a. 



1880. Hel. interstincta, NiCHOLSON & ETHERIDGE p. p. Sil. Foss. Girvan p. 254, pl. XVI, fig. 4 cet. exclusis. 



1882. Heliolites interstinctus, Ldm. Sil. Korall, aus N. Russland und Sibirien, p. 19. 



1883. » 3 ID. Obersilur. Kor. von Tshau-Tien in RiCHTHOFEN China Bd IV, p. 54, pl. V, f. 7. 

 1883. » » Ferd. Roemer p. p. Lethaea geogn. p. 506. Several species seem to have been 



classed together. The flgures in the Atlas, published 1876, also represent dissi- 



railar forms. 

 1883. » » J. COLLET. 12*1' j^njj x^gpj Indiana, p. 252, pl. 2, tigs. 1, 2, 3. 



1885. » a Davis. Kentucky Foss. Corals, Pt. II, pl. 1, fig. 3. It is uncertain whether 



fig. 4 also belongs to this species as stated by the anthor. 



1888. s » Ldm. Upper Sil. Foss. of Sweden, p. 21. 



1889. » » TOLL. Die palieozoischen Versteinerungen der Insel Kotelnoy. Mém. Ac. Se. de 



Russie T. 37, p. 47. 

 1889. » » Lesley. Pennsylv. Geol. Rept. pt. 4, Dictionary Foss. Penn. p. 273, figs. 1 — 3. 



1895. » » Ldm. On the Corallia baltica of Linnpeus. Öfvers. Vet. Akad. Förhandl. p. 636. 



1895. » » Wentzel. Zoantharia tabnlata. Denkschr. Wiener Akad. d. Wissensch. p. 506 



(30 in Separ.) pl. 1, f. 1—7. 



There cannot exist the least doubt that LiNNiEUS did not inteiid to enclose all 

 Gotland Heliolitfe under this one. But to judge froin the type specimen drawn and de- 

 sci'ibed in his »Corallia Baltica» it was this he had in view as the type. The reference of 

 LiNNiEUS to Bromell (Lithogr. Suecana) identifying the »Porus tuberiforitiis» of the latter 

 with Millepora interstincta is not corroborated by the obscure description and figure of 

 Bromell. Niciiolson and Etheridge who have ranged a number of disparate Heliolitas 

 under the denomination of Hel. interstinctus, saj^^ concerning the original type of Linn^eus: 

 »On this point we have nothing to guide .us but the statement of Milne Edwards and 

 Haime (Pol. Foss. Terr. Pai. p. 214) that the septa in Hel. interstincta are »asscz bien 

 développées». But it may be remarked, that the last mentioned authors express their 

 own opinion and that they do not say anything at all about Linn.eus' type. Gonse- 

 quently it is difficult to find how their words could guide us to find what Linn^eus had 

 hiniself raeant. For further particulars I may refer to ray paper on Linn^eu.s' »Corallia 

 baltica» and also on the Corals in Richthofen's China vol. 4, where I have tried to prove 

 that the species described by LiNNiEUS is just this Hel. interstinctus. 



Perhaps no other species of the genus Heliolites has been so ofteii niistaken for 

 others as this. So for instance Ferd. Roemer in his Silur. Verstein. von Tennessee ]i. 

 23 pl. ii f. 5, ba described a diskshaped fossil with rather small calicular openings without 

 septa as Hel. inter.stinctus, in his »Sadewitz» again p. 24 pl. iv f. 4 a still more narrow- 



' Fossils of Girvan p. 258. 



