WORMS. "TESTACEA. 71. Nautilus. 307 
*Zobatulus Shell fpiral lobate, the fpires rounded on one fide and de- 
preffed on the other. 
Adams Microfe. b. 642. tab. 14. fig. 96. 
Found at Whitfable ; minute white opake. 
*Carina- Shell oblong carinate, with a narrow oval aperture. 
talus, Adams Microfc. p. 642. tab. 14. fig, 37. 
Found at Sandwich: rare, minute, white opake. 
*Subarcua+ Shell a little bending, with raifed joints. 
tulus. Adams Microfe. p. 642. tab. 14. fig, 38. 
Found at Sheppy; minute opake brown. 
Balthicus. Shell white convex with a linear aperture: firft whorl far 
exceeding the others in fize. 
Schret. Einl. in conch. 1. tab. 20. fig. 1, 2. 
Inhabits the Ra/tic,; adhering to the roots of Fuci; refembles 
M Beccarii ; //z/] fometimes opake fometimes polifhed, oftén 
pellucid : avhor/s fometimes fmooth ftriate ribbed or tuber- 
culate. 
Helicitess Whorls of the fhells concealed. 
Schrat. Einl. in Stein. 4. tab. 10. fig. 2. 
Found in a foflie ftate on Sz. Peter's Mountain at Mefiritch ; 
very imall: fometimes convex, fometimes depreffed, fmooth 
ox ilriate, 
Rugofus. Apertures of the fhell linear: whorls compreffed with 
thickened margins. 
Inhabits the Southern Ocean; very {mall: white, fomewhat de- 
preffed ; the internal divifions a little prominent outwardly 
and appearing like traníverfe wrinkles. 
Umbilicae Aperture of the fhell compreffed linear: whorls compreffed: 
Ius, umbilicus concave. 
Column. Phytob. 2. tab. 38. fig. E. 
Inhabits Croatza: minute: fhell obliquely jointed with tranfverfe 
grooves an{wering to the divifions within, particulary at the’ 
keel. 
B. Spiral rounded; with feparated whorls 
Aperture of the fhell orbicular: whorle cylindrical. 
Savammerdam Bibi. Nat. 1. tab. 7. fig. 7, 8. 
Lister conch, tab. 550.2. Bonann- Muy. Kircb. Y. fig. 39. 
Rumpf. Muf. tab. 20. fig. 1. Gualt, test, tab. 19, E. 
| Reg’ e Zrgemvs 
Spicula. 
