622 MOLLUSCA. 



22. Cassidaria Thyrrena. — The Thyrean Cassidaria. Plate Ixxiii. fisr. 22. 

 Ovate, transversely grooved, reddisli-fulvous; volutions convex; apex with 

 one tubercle. Three inches and a half long-. Inhabits the Mediterranean 

 «ea. 



23. Strombus auris Diance. — Diana's Ear Strombus. Plate IxxiiL fig. 23. 

 Oblong-ovate ; spire acute, tuberculated, and transversely striated ; base re. 

 curved; outer lip thick; anterior lobe with a finger-like termination. Three 

 inches and a quarter long. Inhabits the Indian oceaa. 



SI. Vterocera cki rag ra.— The Knotty Pterocera. Plate Ixxiii. fig. 24, 

 Ovate, tuberculated, witJi six digitated, canaliculated rays, which are closed 

 over in the adult shell ; outer lip internally striated. Six inches and a half 

 long, exclusive of the digitated lobes. Inhabits the Indian ocean. 



25. Rosiellaria pes pelecani. — The Pelican's foot Rostcllaria. Plate 

 Ixxiii. fig. 25. Turrited, flesh-coloured or white ; body and volutions longi- 

 tudinally ribbed, and crowned with papilla;; base of body papillose. One 

 inch and a half long. Inhabits the European seas. 



2ti. Triton variegatum. — The Variegated Triton. Plate Ixxiii. fig. 26. 

 Elongated, conical, tubiform ; suture of the spire crenulated ; pillar tip 

 grooved obliquely ; pale purple, elegantly clouded and spotted with bro\vn. 

 Sixteen inches long. Inhabits the Indian and American seas. 



27. Murex spiralis. — The Spiral Murex. Plate Ixxiii. fig. 27. Body 

 roundish ; separated from the spire by a narrow ridge ; spire depressed ; 

 upper volutions rounded, and terminating in an obtuse apex ; canal very 

 long and curved ; flesh-coloured, substriate, with remote brown irregular 

 Bpots. Three inches long. Inhabits the Chinese seas- 



28. Ranella spinosa. — The Prickly Ranella. Plate Ixxiv. fig. 1. Ovate, 

 depressed, with acute, short, distinct, rauricated tubercles ; fawu-colourtd ; 

 varices lateral, with elongated spines; beaksulcated ; outer lip internally 

 crenated. Two inches and an eighth long. Inhabits the Indian ocean. 



29. Struthiolaria nodulosa. — The Nodulous Struthiolaria. Plate Ixxiv. 

 fig. 2. Ovate, grooved and striated triuisversely ; top of volutions flattened 

 and nodulous ; cream.yellow, with undulated brownish-yellow longitudi- 

 nal lines ; lip yellow-orange within. Three inches long. Inhabits New 

 Zealand. 



30. Pyridajicus. — The Fig Pyrula. Plate Ixxiv. fig. 3. Spire very short ; 

 volutions rounded above; yellow-brown, spotted with dark brown; and 

 covered with decussated striae. Three inches long. Inhabits the Indian 

 ocean. 



31- Fusus corneus. — The Horny Fusus. Plate Ixxiv. fig. 5. Elongated, 

 with eight convex volutions, striated spirally, and covered by an olivaceous 

 epidermis ; beak long, oblique. Three inches long. Inhabits the seas of 

 Northern Europe. 



32. Fascio/aria trapezium. — The Quadrangular Fasciolaria. Plate Ixxiv. 

 fig. 6. Ventricose, obtusely angled; volutions nodulous; reddish fawn- 

 coloured, with transverse, double, slightly undulated lines ; inside of aper. 

 ture with reddish striae. Six inches long. Inhabits the Indian ocean. 



33. Cancellaria reticulata. — The Reticulated Cancellaria. Plate Ixxiv. 

 fig. 4. Oval, strong, ventricose, with distant, coarse, reticulated striae ; 

 Bometimes with yellow or orange bands ; pillar with three plaits ; aperture 

 white. Two inches long. Inhabits the Atlantic ocean. 



34. Turbinella pyrum.—TXie Pear-Shaped Turbiuella. Plate Ixxiv. fig. 



