PYECLA. 105 



cose ; and the canal attenuated, striated spirally, and striped 

 with chestnut longitudinally ; mouth striated within, thickened 

 and creuulated at the margin. 



27. mirabilis, f. 45, 46, Angas. — Testa fusiformis, pallida, 

 tenuiter striata ; spira elevata, anfractibus scalariformibus 

 acute angulatis, ad angulum crenato-carinatis, supra an- 

 gulum late planatis, subexcavatis, infra angulum sensim 

 contractis, versus canalem attenuatis, apertura angulata, 

 margine tenui, supra angulum oblique arcuatim emarginato, 

 infra medio arcuatim producto. — This remarkable shell, 

 found in a Japanese collection by Mr. Thatcher, has been 

 thought to exhibit, in the arched sinus of the outer lip 

 above the angle, a peculiarity of generic value. It has been 

 therefore described by Mr. Angas as Thatcheria mirabilis. The 

 specimen, now in the collection of Mrs. Deburch, is somewhat 

 imperfect, and probably is an undeveloped stage of what 

 would be a much larger shell. 



28. serotina, f. 44, Hinds. — Testa turbinato-fusiformis 

 crassa albida, epidermide fusco induta, spira producta, an- 

 fractibus angustis irregularibus, longitudinaliter plicatis, 

 spiraliter sulcatis, ultimo subito amplificato ad suturam 

 profunde excavato, margine supra suturam rotundo, lateribus 

 deinde compressis, infra medium contractis turn tumidis, 

 canali extus tortuo, ad terminum acuminato, apertura 

 pallidissime carnea, postice canalifera, utrinque callosa et 

 contracta, margine externo denticulato. — The spine of this 

 singular species (Genus Cyrtula, Hinds.) is like that of a 

 Fusus of the Colus group, and seems to rise suddenly from 

 the turbinated body whorl. On the whole, as the top of the 

 last whorl and opening of the apertura are much above the 

 middle, and also the widest part of the shell, it seems to 

 find place most naturally in this Genus, if not standing alone. 



29. spieata, f. 29, Lamarck. — Testa tenuis oblique 

 elongato-pyruloidea, spiraliter tenuiter striata, fulva, castaneo 

 strigata, spira brevitsima, anfractibus depressis, superne 

 angulatis supra angulum planatis, ultimo magno, eleganter 

 curva superne ventricosa, fulva, maculis magnis, bifasciatim 

 dispositis picta, canali elongato medio arcuato; sutura 

 canaliculata, angulo carinato, crenato. — P. splrata approaches 

 nearest in form to shells of the genus Ficula. It is thin, 

 elegantly curved and finely marked with two rows of stripe- 

 like spots. It has a chanelled suture resembling that of P. 

 canaliculata. 



