REPORT ON THE GASTEROPODA. 143 



the slight umbilical depression. Colour sub-hyaline white. Spire conical, short, scalar. 

 Apex consists of two small turbinated smooth embryonic whorls, of which the extreme tip 

 rises in a minute dome. Whorls seven in all, rounded but flattened, and increasing 

 more rapidly in breadth than in height. Suture strongly constricted, almost channelled, - 

 very oblique. Mouth round, slightly effuse at the point of the pillar. Inner lip just 

 continuous and no more across the body, slightly reverted on the pillar, where there is 

 behind it a small channel and a slight umbilical depression. H. 0'098 in. B. 0*05. Mouth, 

 height 0-028, breadth 0-028. 



The only Snalaria which this in the least degree recalls is Scalaria diancc, Hinds, which is, 

 however, utterly different. 



8. Scalaria (Cirsotrema) hellenica, Forbes. 



Scalaria hellenica, Forbes, Brit. Assoc. Report, 1S43, pp. 137, 189. 

 Rissoa? coronata, Philippi, Emim. Moll. Sicil., 1844, vol. ii. p. 127, pi. xxiii. fig. 7. 

 Scalaria crassilabrum, Sowerby, Thes. Conch., 1844, vol. i. pt. 4, p. 105, sp. 87, pi. xxxv. figs. 



115, 116. 



„ scacchii, Hbrnaes, Tert. Moll. Wien (1856), vol. i. p. 479, pi. xlvi. fig. 12. 



,, „ Weinkauff, Concli. Mittelmeer., vol. ii. p. 238, sp. 7. 



,, hellenica, Nyst, Tableau du genre Scalaria, p. 36, sp. 141. 



,, scacchii, Monterosato, Enumerazione, p. 30. 



„ „ Aradas and Benoit, Conch. Mar. Sicil., p. 184, No. 492. 



,, ,, Jeffreys, " Lightning " and " Porcupine " Moll, Proc. Zool. Soc. Lond., 1884, p. 140, 



No. 20. 



Station 113a. September 1, 1873. Lat. 3° 47' S., long. 32° 24' 30" W. Anchorage 

 off Fernando-Noronha. 7 to 25 fathoms. Volcanic sand and gravel. 



Habitat. — iEgean Sea, 110 fathoms (Forbes), Mediterranean (Philippi), Madeira (my 

 own dredging), Canaries, 40 to 1260 fathoms (Jeffreys). 



Fossil. — The Austrian Miocene and the Piedmontese Pliocene (Nyst). 



This species secretes the beautiful purple dye which is so marked a feature in the 

 Scalarias. 



9. Scalaria (Cirsotrema) dentiscalpium, Watson (PI. IX. fig. 3). 



Scalaria (Cirsotrema) dentiscalpium, "Watson, Prelim. Report, pt. 15, Journ. Linn. Soc. Lond., vol. 



xvi. p. 607. 



Station 187. September 9, 1874. Lat. 10° 36' S. } long. 141° 55' E. Near Cape 

 York, Torres Straits, North Australia. 6 fathoms. Coral mud. 



Shell. — Small, extremely long and sharp, most delicately, closely, and sharply ribbed 

 and spiralled, with rounded whorls and base and an impressed suture. Sculpture : Longi- 



