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I.—Notes on some British Palæozoic Crustacea Belonging to the order Merostomata

Published online by Cambridge University Press:  01 May 2009

Henry Woodward
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Extract

When I first drew attention to this genus at the Bath Meeting of the British Association in 1864, only one nearly perfect specimen was known. Mr. Salter was acquainted with this form, so long ago as 1857, and referred to it, among other new and undescribed Crustacea, in a paper “On some New Palæozoic Star-fishes” found at Leintwardine, Shropshire, under the name of Limuloides. Portions of several others had also been met with, to which Mr. Salter attached MS. names in (the Museum of Practical Geology, Jermyn-street, but they have not been heretofore described. The most perfect of these Limuloid forms was described by me in a paper read before the Geological Society in June, 1865.3 (See Plate X. Fig. 1.)

Type
Original Articles
Information
Geological Magazine , Volume 9 , Issue 100 , October 1872 , pp. 433 - 441
Copyright
Copyright © Cambridge University Press 1872

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References

page 433 note 1 Extracted from the Author's Memoir on the Merostomata, Part iv. p 174 Pal. Soc. Mon., vol. for 1872.

page 433 note 2 See Ann. and Mag. Nat. Hist., 2nd series, vol. xx., 1857, p. 321.

page 433 note 3 See Quart. Journ. Geol. Soc., 1865, vol. xxi., p. 490, pi. xiv., fig. 7.

page 434 note 1 With the concurrence of Mr. Salter given at the time.

page 434 note 2 In the original description of the glabella of Hemiaspis limuloides (see Quart. Journ. Geol Soc, 1865, vol. xxi. p. 490) I have described the glabella from a detached portion, “as ornamented with a semicircle of nine tubercles, and a tenth immediately within the circle upon the elevated front, and two small tubercles at the posterior margin.” The acquisition of the second specimen (Plate X. Fig. 2) proves this fragment to belong to another species, not to H. limuloides, as formerly supposed.

page 435 note 1 See Quart. Journ. Geol. Soc, 1867, vol. xxiii. p. 28, plates i. and ii.

page 436 note 1 ‘Archiv för die Naturk. Livonia, Esthonia, und Kurlands,’ erste serie, zweiter bd., tab. ii. figs. 12, 13, and 15, pp. 378–382. (Dorpat, 1859.) 8vo.

page 436 note 2 It is just possible that Bunodes may prove to be an Arachnid related to Scudder's Architarbus rotundatus from Illinois, U.S., and A. subovalis, H. Woodward (see Geol. Mag., 1872, Vol. IX., September number, p. 385, Pl. IX. Figs. 1 and 2).

page 438 note 1 Hemiaspis Salweyi, Salter, 1865. Lowry's Chart of Fossil Crustacea.

page 438 note 2 From βέλоδ a dart, and oύρἐ the tail.

page 438 note 3 König, Icones Fossilium Sectiles, Centuria Secunda, pl. xviii,, fig. 230. (London, 1820.)

page 439 note 1 Bridgewater Treatise on Geology an dMineralogy, vol. i, p. 396; vol. ii., p. 77, pl. 46′′, fig. 3.

page 439 note 2 Buckland's Limulus trilobitoides (1836), in consequence, becomes a synonym, of König's Bellinurus bellulus (1820).

page 439 note 3 Defined by the writer as the Thoracic series of segments.

page 439 note 4 The rudimentary Abdominal segments coalesced. See memoir “On, some points in the structure of the Xiphosura, having reference to their relationship with the Eurypteridœ,” by H. Woodward, Quart. Journ. Geol. Soc, 1867,. vol. xxiii), p. 28, pl. i. and ii.