BY C. HEDLEY. 523 



DiALA MONiLE A. Aclams. 

 (Plate xxxiii., fig.36.) 



Alaba monile A. Ad., Ann. Mag. Nat. Hist. (3), x. 1862, p.296. 



This shell has never been illustrated. I therefore present a 

 drawing of a Tasmanian shell 5 mm. in length, such as is accepted 

 by local collectors for the above species. 



It ranges as far north as Broken Bay, N.S.W.* 



Alaba (Styliferina) sulcata Watson. 



This species was represented in the "Challenger" collection 

 by a single shell dredged in six fathoms off Cape York, Queens- 

 land.! Concerninsj it Dr. Watson remarked, " I do not feel at 

 all certain that this is a Styliferina; it may be only a young 

 shell of some other genus." 



These doubts were well founded, for a series I dredged last 

 year off the Capricorn Islands, Queensland, prove Watson's 

 species to be the apex of Stromhus campbelli Gray. It is note- 

 worthy that the same haul which gave Watson his Alaba sulcata 

 included Strombus campbelli in the adult stage. 



While on the subject of East Australian Alaba I may point out 

 that three species were omitted from an enumeration of the genus 

 by Mr. E. A. Smith. J Perhaps as a consequence they have since 

 been renamed. 



Alaba flammea Pease,§ which ranges down the whole length of 

 the Great Barrier Reef, seems to me a prior name of Diala albugo 

 Watson. 1 1 



Alaba semistriata Philippi,1I whose Australian distribution is 

 similar to that of the preceding species, appears to me to differ 



* Hedley, Mem. Austr, Mus. iv. 1903, p. 352. 



. t Watson, Chall. Rep. Zool. xv. 1886, p.570, PI. xlii. f.7. 



X Proc. Zool. Soc. 1875, p. 538. 



§ Am. Jom-n. Conch, iii. 1867, p.297, PI. xxiv. f.33. 



II Chall. Rep. Zool. xv. 1886, p.568, PI. xlii. f.3. 



1[ Zeitsch. Malak, vi. 1849, p.34; Savigny, Deser. Egypte, PI. iii., f. 27, 28. 



