LORICULA. 81 



and H. Von Meyer, 1848, 1 Band, p. 180, Tab. XXV, fig. 14) has described and figured a valve o( Pollicipes 

 liasirms : he considers it as one of the great hinder lateral valves — that is, a tergum. This eminent palaeon- 

 tologist is well acquainted with the cirripedia, and is therefore probably right in his determination ; but I am 

 forced to say that the manner of growth seems to me, if I rightly understand the figure, unlike that of the 

 terga in any known PoUicipes. 



Miiller (Aachen, p. 43, Tab. II, fig. IC,) has described PoUicipes ornatissimus ; the valve figured is a 

 carina, I believe, of Scalpellum maximum. 



PoLLiciPES . /. Sotverbij. Geoloj. Transact. 2d series, vol. v, pi. ix, fig. 2. 



The specimens here figured by Mr. Sowerby, were found by Mr. Wetherell in a deep well in the London 

 Clay, at Hampstead, together with portions of Scalpellnm quadratum. The specimens are in a broken con- 

 dition, and have been kindly lent me by Mr. \A^etherell : they consist of some fragments of terga, and I 

 believe of the basal portion of a scutum, of a carina, and of several latera. Tlie species appears to have 

 come near to the Eocene P. refexus ; but although thinking it distinct, I dare not, considering the imperfect 

 state of the scutum, name it. The valves appear to have been much thicker and more rugged than those of 

 P. refexus ; the basal angle of the terga sharper, and the rostral angle of the scutum more abruptly trun- 

 cated. The latera are remarkable, and unlike anything which I have seen ; they present several shapes; 

 they are all more or less triangular, and their lateral edges are more or less distinctly bordered exteriorly by 

 prominent ridges ; one has a central exterior ridge, and its basal margin is protuberant ; another has one of 

 its sides at right angles to the basal margin, and the other side largely convex. Not having seen the lower 

 latera of the P. refexus, or indeed of any fossil PoUicipes except of P. ylaher and unguis, I cannot use 

 characters drawn from the latera as diagnostic. The specimens are extremely small. 



Genus — Loricula. 

 LoRICULA PULCHELLA. Tab. V, figs. 1 — 4. 



LoRTcuLA PULCUELLA. G. B. Soxverby, jun. Annals of Nat. History, vol. xii, 1843, 



p. 260. 



L. capiUdo decern {fortasse) vahns instructo. Pedunculo seriebus decern squamarum 

 laviuvi calcarearum instructo ; sex lateralihus multmn transverse elongatis ; quatuor termi- 

 nalihus angiistis ; secundum peduncuU margines rostralem et carinalem deciirrif sutura 

 medialis recta, sqiiamis non intersecantibus. 



Capitulum with (perhaps) ten valves. Peduncle with ten rows of smooth calcareous 

 scales, of which the six lateral rows are much elongated transversely, and the four end 

 rows narrow ; along the rostral and carinal margins of the peduncle there is a straight 

 medial suture, with the scales not intersecting each other. 



Lower Chalk, Cuxton, near Rochester, Kent. Mus. "Wetherell. 



I owe to the kindness of Mr. Wetherell an examination of this beautiful and unique 

 specimen, well described and figured by Mr. G. B. Sowerby, Junr., in the ' Annals of 



1 



