NATICA. 



Plate XXI. 



Species 92. (Fig. «, Mus. Taylor ; Fig. h, c, 

 Mus. Cumiug.) 



Natica catenata. Nat. testa anifliter excavate imihi- 

 licatd, oblique depresm, siibbiflatd, infra concam, npird 

 parvd, anfractibus superne declivibits, dense plicato- 

 striaiis, interstitiis acute impresm, anfractmaii medio 

 et parte inferiori leevibus vel minute decussatim stri- 

 atis, aperturd lunari-ovaid, subampld, cffimi, columella 

 tenui, callositate lata obtusd columuari umbilicum iu- 

 traute ; Uvido-citiereu, Jlammis fulvo-fnticescentibus 

 fasciatim pictd. 



The chained Natica. Shell largely cxcavately umbi- 

 licated, obliquely depressed, somewhat inflated, con- 

 cave beneath, spire small, whorls slanting in the 

 upper part, densely plicately striated, the interstices 

 being sharply impressed, middle and lower portion 

 of the whorls smooth or minutely decussately stri- 

 ated, aperture lunar-ovate, rather large, effused, co- 

 lumella thin, with a broad obtuse columnar callosity 

 entering the umbilicus ; livid ash-colour, painted 

 with bands of fulvous-brown flames. 



Philippi, Pro. Zool. See. 1851. 



Hah. Sicily. 



This very interesting species is of an obliquely de- 

 pressed form, characterized beneath the suture with a 

 dense row of deeply grooved plicated ridges, which ter- 

 minate suddenly at about oue-third of the shell. 



A very solid conical species, of a shining white, faintly 

 tinged with brown. 



Species 93. (Mus. Cuming.) 



Natica pyeamis. Nat. testd subobtecte nmbilieatd, co- 

 noided, crassd, solidd, spird valde exsertd, anfractibus 

 declivi-convexis, Mimiti- dt'cifsxnfiiu striata, aperturd 

 parviusculd, lunari-iirnUi, riihi„i(>lld superne crasse 

 callosd; fuscescentv-idhd, nitnile. 



The pyramid Natica. Shell with a nearly covered 

 umbilicus, conoid, thick, soHd, spire much exserted, 

 whorls slantingly convex, minutely decussately stri- 

 ated, aperture rather small, lunar-ovate, columella 

 thickly callous at the upper part; brownish-white, 

 shining. 



Ilab. Mouth of the Swan Eiver, New Holland (in sandy 

 mud, at the depth of ten fathoms); Lieut. Collie, 

 E.N. 



Species 94. (Mus. Cuming.) 



Natica Elen^. Nat. testd ampliter excavate umbilicatu, 

 oblique depressd, inflatd, spird parvd, anfractibus con- 

 vexis, supra et infra dense pUcaio-liraiis, aperturd 

 subampld, lunari-ovatd, e/pisd, colunn-lht .wjicriii'- cal- 

 losd, callositate laid cohiniiinri i'„il)iliriijii intmnte ; 

 lutescente-albd, lineis fiiho-rujis iiitrrnipl'i' imdnlis 

 dense longitudinaliter pictd. 



The Elena Natica. Shell largely excavately umbili- 

 cated, obliquely depressed, inflated, spire small, 

 whorls convex, closely plicately ridged above and 

 below, aperture rather large, lunar-ovate, effused, 

 columella callous at the upper part, with a broad 

 columnar callosity entering the umbilicus ; yellowish- 

 white, densely longitudinally painted with interrupt- 

 edly waved fulvous-red lines. 



Recluz, Pro. Zool. Soc. 1843, p. 205. 

 Eadem Natica Haneti, Eccluz. 



Eab. St. Elena, West Columbia (in sandy mud, at six 

 fathoms) ; Cuming. 

 Peculiarly characterized by the fulvous-red lines with 



which it is densely longitudinally painted, being here and 



there suddenly shaken or dislocated, so to speak, in their 



plan of waving. 



Species 95. (Mus. Cuming.) 



Natica sulcata. Nat. testd ampliter e.vcavatii nmbili- 

 eatd, oblique depressd, crassiusculd, spird brevi, an- 

 fractibus rottmdatis, juxta .mturas impressis, undique 

 fortiier sulcatis et cancellatis, aperturd lunari-ovatd, 

 effusd, columelld superne callosd, callositate laid co- 

 lumnari umbilicum intrante ; alhidd, fulvo-aurantio 

 interdum fasciatd et maculatd. 



The grooved Natica. Shell largely excavately umbi- 

 licated, obliquely depressed, rather thick, spire short, 

 whorls round, impressed next the sutures, strongly 

 grooved and cancellated throughout, aperture lunar- 

 ovate, effused, columella callous at the upper part, 

 with a broad columnar callosity entering the umbi- 

 licus ; white, sometimes banded and mottled with 

 fulvous-orange. 



June, 1855. 



