SUPPLEMENT— HAUGIA. 



XXV 



6. Hattgia patblliformis, S. Buckman. Suppl., Plate III, figs. 1 — 3. 



Description.. — Platyleptogyral, versi-parvicostate, parvinodate, septicarinate, 

 subdensiseptate, L. broad. 



Note. — The inclusion decreases with age, so that the species is angust- 

 umbilicate in youth, and latumbilicate when adult. 



Distinction. — Less ornate than Ogerieni. The extreme compression makes it a 

 very distinct form. 



Localities and Strata. — Gloucestershire : Coaley Wood (Cotteswold Sands) ; 

 Somerset : Shepton Beauchamp ("Upper Lias," with other species of Eaugia). 



Date of Existence. — Variabilis hemera. 



7. Haugia jugosa (Sowerb;/). Plate XXIII, figs. 11 — 13. 



1815. Ammonites jugosus, Sowerby, PI. xcii, fig. 1. 

 1874. — Ogerieni, Dumortier, PI. xix, figs. 3, 4. 



1889. Haugia variabilis, This Monogr., PI. xxiii, figs. 11 — 13. 



1890. — jugosa, This Monogr., p. 149, in correction. 



Description. — Platyleptogyral, subangustumbilicate, versi-recticostate, parvi- 

 regularinodate, alti-septicarinate. 



History. — I refigured Sowerby' s jugosus, which is a rather unsatisfactory 

 specimen, and compared therewith two other examples, a small and a large one. 

 But they do not strictly agree with it, and their separation is necessary. 



The drawing of Sowerby's original specimen given in the body of this work 

 was, owing to defective preservation, somewhat unsatisfactory. In order to make 

 better comparison Mr. G. 0. Crick, P.G.S., of the British Museum, has kindly 

 developed the other side of the type. It shows that, in the side view depicted, 

 the nodi are not conspicuous enough, and the costas are not sufficiently 

 distinct. 



Remarks. — If Sow-erby's species be now correctly identified with an adult in 

 my collection, then jugosus when somewhat fully grown is thicker and costate for 

 a longer time than the specimen depicted in PI. XXIV. 



Localities and Strata. — Somerset : White Lackington Park, near Ilminster, 



o 



