SUPPLEMENT— HAUGIA. xxvii 



which one (PI. iii, fig. C>) is not the same genus, not even one of the Lillia- 

 Haugia series. The other two differ in degree of coarseness of costation. The 

 larger specimen is selected as the type. 



A specimen well in agreement therewith has been obtained from Shepton 

 Beauchamp at a horizon corresponding with that noted by Denckmann — namely, 

 beneath striatulus. This specimen differs from those figured in this Monograph 

 as illustris — from fig. 3 (PI. XXVI) by smaller umbilicus, from fig. 4 by less 

 definite tubercles but rather more definite costas. 



Localities and Strata. — Somerset : Shepton Beauchamp (" Upper Lias," between 

 bifrons and striatulus [toarcensisj) . Gloucestershire : North Nibley (Cotteswold 

 Sands). 



Date of Existence. — Variabilis hemera. 



10. Haugia aff. illustris. Plate XXVI, figs. 3 — 5. 



1890. Haugia illustris, This Mooogr., PI. xxvi, figs. 3 — 5. 



Remarks. — The reference of these specimens to illustris can scarcely be main- 

 tained. 



The two specimens can hardly both belong to one species, but the material is 

 insufficient and badly preserved. 



11. Haugja compressa, S. Buchnan. Suppl., Plate II, figs. 8 — 10. 



1844. Ammonites variabilis, d 'Orbigny ; PL cxiii, figs. 5, 6 only. 



1887. Ammonites (Hammatoceras) illustris, DencJcm., PI. v, fig. 2 only. 



Definition. — Platyleptogyral, angustumbilicate, parvibullate, versi-subflexi- 

 parvicostate, septicarinate. 



Note. — The adult would no doubt be subexcentri-latumbilicate. 



Distinction. — From jugosa — less ornate ; from Ogerieni — the same, and less 

 umbilicate ; from patelliformis — more distinctly tuberculate, more distinctly and 

 more closely costate ; from Werthi — less flexicostate, more distinctly tuberculate. 



Localities and Strata.— Gloucestershire : The "Waterworks, Chalford, near 

 Stroud (" Upper Lias," with other tuberculate species of Haugia) ; Coaley Wood 

 (Cotteswold Sands). Somerset : Shepton Beauchamp (" Upper Lias "). 



Date of Existence. — Variabilis hemera. 



