. Bulletin of the British Museum (Natural History), Geology. CASSIOPIDAE 267 nized by De Verneuil & Loriere at Utrillas, where each was considered to be characteristic of a particular horizon, but we have been unable to discover any subsequent work in confirmation. Coquand considered that the specimen first figured as lujani by De Verneuil & Collomb (1853), that called luxani by Vilanova (1859, 1863), and that described as heeri by Pictet & Renevier (1854), were all examples of his Cassiope lujani var. laevigata. However, in 1868, De Verneuil & Loriere maintained that heeri and
. Bulletin of the British Museum (Natural History), Geology. CASSIOPIDAE 267 nized by De Verneuil & Loriere at Utrillas, where each was considered to be characteristic of a particular horizon, but we have been unable to discover any subsequent work in confirmation. Coquand considered that the specimen first figured as lujani by De Verneuil & Collomb (1853), that called luxani by Vilanova (1859, 1863), and that described as heeri by Pictet & Renevier (1854), were all examples of his Cassiope lujani var. laevigata. However, in 1868, De Verneuil & Loriere maintained that heeri and lujani were quite distinct from one another as the tuberculate cords were in the centre of the whorl in the first species and close to the sutures in the second. Cassiope picteti Coquand (1865: 253; pi. 4, figs 6-7) was distinguished by having a very slender shell, although its ornament of median tuberculate cords would suggest a close affinity to lujani. De Verneuil & Loriere (1868: 8) mistakenly synonymized both picteti and heeri with Muricites strombiformis (Schlotheim, 1820), a synonym of the type species of Para- glauconia Steinmann. Peron (1889: 50; pi. 19, fig. 18), in identifying a Tunisian fossil as picteti Coquand, and recognizing lujani, heeri and picteti as separate species, has confused the matter further. Arkell (1947: fig. ) described Aptian material from Worbarrow as var. crassa Coquand; this is considered to be the new species Cassiope dorsetensis by Mennessier (1984: 78). A number of the specimens from Punfield, , and , also have the turreted form and very pronounced adapical carina on their later whorls characteristic of this form. Several other specimens are comparable to the earlier whorls of the var. nodosa, yet none of these have the gross proportions in shell form that Coquand believed were another feature of this variety. Not one of the Punfield specimens could be described as elongate, but several, , po
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