ASPERGILLUS— Plate IV. 



Species 18. (Mus. Cuming.) 



Aspergillum agglutinans. Asp. testa, valvis (obtectis) ; 

 vagina clavatd, arenulas, calculos, et conchas dense 

 agglutinante ; fimbria vix nulla,, tubulis brevissimis, 

 subamplis, irregularibus ; disco convexo, sparsim per- 

 forata, perforationibus subamplis, subpapillaribus. 



The agglutinating Aspergillum. Shell with the valves 

 (covered) ; sheath club-shaped, closely agglutinating 

 sand, pebbles, and fragments of shells ; frill scarcely 

 any, tubes very short, rather large, irregular ; disc 

 convex, sparingly perforated, perforations rather large 

 and slightly papillary. 



Lamarck, Anim. sans vert. vol. vi. p. 21. 

 Aspergillum Nova-Hollaudia, Chenu. 

 Foegia agglutinans, Gray. 



Hah. New Holland. 



The tube of this species is particularly densely agglu- 

 tinated with pebbles and fragments of shells. The disc is 



small, and somewhat rudely formed, with the perforations 

 rather large. 



Species 19. (Mus. Cuming.) 



Aspergillum incertum. Asp. testa valvis oblongo-ova- 

 tis ; vagina clavatd, rudi ; fimbria discoque valde dis- 

 tortis, tvbulis nunc brevibus, liberis, nunc longioribus, 

 varie agglomeratis. 



The doubtful Aspergillum. Shell with the valves 

 oblong-ovate; sheath club-shaped, rude ; frill and disc 

 much distorted, tubes sometimes short, free, some- 

 times longer, variously agglomerated. 



Chenu, Illus. Conch. Asp. p. 4. pi. 4. f. 6, 6 a, 5, 5 a. 



Ilab. Australia. 



This may probably be a variety of A. Novce-Zelanditc. 

 The specimens of both species, so far as they are at pre- 

 sent known, are much distorted, and not in very good con- 

 dition. 



