120 TRILOBITES OF GIRVAN. 



and the two inner pairs are shorter, equidistant, and snbequal, the inner spines 

 being parallel, and the outer slightly divergent. Whole surface of pygidium and 

 spines covered with small, sharp tnbercles and grannies. 



Remarks. — This Girvan specimen only appears to differ from the Swedish species 

 by having the three inner pairs of spines a little longer. In A. caractaci, Salter, 1 

 from the Bala of Shropshire there is the same number of spines, but the third pair 

 does not overlap the fourth pair. 



Collection. — Mrs. Gray. 



Horizon and Locality. — Whitehonse Group (M. Bala) : Shalloch Mill. 



Family Encrinueip/i-. 

 Genus ENCRINURUS, Emmrich. 

 1. Encrinurus punctatus (Bri'mnich), 1781. Plate XVI, fig. 8. 



1759. Entomolithus paradoxus, Linnaeus, Act. Keg. Acad. Sci. Holm., p. 22, pi. i, fig. 2. 

 1781. Trilobus punctatus, Briinnich, Kojbenh. Sellsk. Skrivt, nye Samml., i, p. 394. 



1821. Entomostracites punctata, Wahlenberg, Act. Soc. Sci. Ups., vol. viii, p. 32, pi. ii, fig. 1 (tail 

 only). 



1822. Calymene variolaris, Brongniart, Crust. Foss., pi. i, fig. 3 a (non b). 

 1826. Calymene punctata, Dalman, Palsead., p. 47, pi. ii, figs. 2 a, b. 



1836. Asaphus tuberculatus, Buckland, Geol. and Mineral. (Bridgw. Treat.), pi. xlvi, fig. 6. 



1837. Calymene punctata, Hisinger, Letli. Suec, pi. i, fig. 9. 



1839. Calymene punctata, Murchison, Silur. Syst., p. 650, pi. xxiii, fig. 8. 



? 1839. Phacops variolaris, Emmrich, Dissert., p. 20. 



1845. Encrinurus punctatus, Emmrich, Neues Jahrb., p. 42. 



1846. Encrinurus stokesii, M'Coy, Synops. Silur. Foss. Ireland, p. 46, pi. iv, fig. 15. 



1847. Encrinurus punctatus, Corda, Prodr. Mon. Bohm. Trilob., p. 91, pi. v, fig. 55. 



1848. Encrinurus punctatus, Kutorga, Verb. Miner. Gesell., 1847, p. 299, pi. viii, fig. 4. 



1850. Cybele punctata, Fletcher, Quart, Journ. Geol. Soc, vol. vi, p. 158, pi. xxxii, figs. 1 — 5. 



1851. Encrinurus punctatus, Salter, Quart, Journ. Geol. Soc, vol. vii, p. 172, pi. ix, fig. 4. 

 1851-6. Encrinurus punctatus, Bronn, Leth. Geogn., 3rd ed., vol. i, p. 658 ; Atlas, pi. ix 2 , figs. 24 a — c. 



1853. Encrinurus punctatus, Salter, Mem. Geol. Surv., dec. vii, p. 6, pi. iv, figs. 15, 16. 



1854. Encrinurus stolcesii, M'Coy, Synops. Palseoz. Foss. Woodw. Mus., p. 158. 

 1854. Cry ptony mus punctatus, Angeliu, Pal. Scand., p. 3, pi. iv, figs 4 — 8. 



1857. Encrinurus punctatus, Nieszkowski, Mon. Trilob. Ostseeprov. (Archiv f. Naturk. Liv.-Est.- 

 Kurl., ser. i, vol. i), p. 604, pi. iii, figs. 6, 7. 



1858. Encrinurus punctatus, Hoffmann, Verh. Miner. Gesell., p. 35, pi. iii, fig. 5. 

 1865. Encrinurus punctatus, Salter and Woodward, Chart Foss. Crust., p. 13, fig. 52. 



1867. Encrinurus punctatus, Murchison, Siluria, 4th ed., Foss. 14, fig. 10; Foss. 64, fig. 5 ; pi. x, 



fig. 5. 

 1872. Encrinurus pun via I 'us, Murchison, ibid., 5th ed., p. 235, Foss. 65, fig. 5. 



1 Salter, 'Quart. Journ. Geol. Soc,' vol. xiii (1857), p. 211, pi. vi, figs. 15—17. 



