A. H. Foord — Western Australian Fossils. 153 



by specimens which show admirably the features characteristic of it, 

 as may be seen in the one selected for illustration. The curious 

 crumpled appearance of the concentric wrinkles on the surface of 

 the shell is a feature which plainly distinguishes this species from 

 all others, and has led to its recognition in many countries. 

 Locality. — Irwin River, Victoria District. 



SriRiFERA Musakheylensis, Davidson, var. Atjstralis, var. nov. 

 A small specimen of this variety showing its characteristic 

 ornaments. 



Locality. — Irwin River, Victoria District. 



Syringothyris exsuperans, de Koninck, sp. (supra, p. 149). 



Fragments of the ventral valve of this species are contained in 

 Mr. H. P. Woodward's Collection. They are clearly identical with 

 the specimens from the Gascoyne River. One of them shows the 

 large area with its triangular aperture, partly closed by the pseudo- 

 deltidium, and on the other side the ribbed shell with its deep 

 mesial sinus. 



Locality. — Irwin River, Victoria District. 



Reticularia lineata, Martin, sp. 



1809. Conchilolithus Anomites Uneatus, Petrificata Derbiensia, p. 12, pi. xxxvi. fig. 3. 

 1836. Spirifera lineata, Phillips, Geol. of Yorkshire, pt. ii. p. 219, pi. x. fig. 17. 

 1842. Spirifer Uneatus, de Koninck, Descr. des Anim. Foss. du Terr. Carb. de la 



Belgique, p. 270, pi. vi. fig. 5, pi. xvii. fig. 8. 

 1858. Spirifera lineata, Davidson, British Carb. Brach. vol. ii. pt. v. p. 62, pi. xiii. 



figs. 1-13. 

 1865. Spirifer Uneatus, von Martens, in Beyrich, Physik. Abhandl. der Konigl. 



Akad. der Wissensch. zu Berlin (1864), p. 76, Taf. i. figs. 13, a-c. 



1877. Spirifer Uneatus, de Koninck, Rech. snr les Foss. Paleoz. de la Nouvelles- 



Galles du Sud (Austridie), pt. iii. p. 224, pi. xi. fig. 9. 



1878. Spirifera lineata, Etheridge, jun., Cat. Australian Fossils, p 57. 



1887. Reticularia lineata, TVaagen, Mem. Geol. Surv. India— Palfeont. Indica, Salt- 

 Range Foss. vol. i. ser. xiii. p. 540, pi. xlii. figs. 6-8. 



Specimens of the ventral valve of this species are recognizable in 

 the Collection. 



Locality. — Irwin River, Victoria District. 



Reticularia crebristria, Morris, sp. 



1845. Spirifera crebristria. Morris, in Strzelecki's Phys. Descrip. of New South 

 Wales and Van Diemen's Land, p. 279, pi. xv. fig. 2. 



1847. Spirifera (Eeticularia) crebristria, M'Coy, Ann. and Mag. Nat. Hist. vol. 

 xx. p. 232. 



1854. Spirifera crebristria, Grange, in Dumont-d'Urville's Voyage au Pole Sud, 

 Geol. vol. ii. p. 85. 



1877. Spirifera crebristria, de Koninck, Rech. sur les Foss. Paleoz. de la Nouvelles- 



Galles du Sud (Australie), pt. iii. p. 225, pi. ix. fig. 5. 



1878. Spirifera crebristria, Etheridge, jun., Cat. Australian Fossils, p. 55. 



" Shell transversely elliptical, depressed ; mesial fold rather large, 

 rounded and undefined ; surface marked with numerous, fine, radiat- 

 ing, closely approximated strife, crossed by the faintly prominent 

 lines of growth ; width exceeding the length by one-fourth." 



