1865. | MOLLUSCAN FAUNA OF SOUTH AUSTRALIA. 653 
66. Myrizus (AuLACoMYA) MENKEANUS. 
Mytilus menkeanus, Phil.; Dunker, MS. in Mus. Cuming. 
Station. Adhering to stones in clusters. 
Hab. St. Vincent’s and Spencer’s Gulfs. 
67. Myritus (AULACOMYA) ROSTRATUS. 
Mytilus rostratus, Dunker, MS. Mus. Cuming. 
Station. In clusters on rocks. 
Hab. Encounter and Guichen Bays. 
68. *CRENELLA PAULUCCIZ. 
Crenella pauluccie, Crosse, Journ. de Conch. 1863, p. 89, pl. 1. f.8. 
Station. Nestling amongst Zostera on sandy flats. 
Hab. Head of Spencer’s Gulf and St. Vincent’s Gulf. 
Varying in colour from bright green to orange. 
69. CRENELLA (MopIoLaRIA) CUMINGIANA. 
Modiola cumingiana, Dunker, MS. Mus. Cuming. 
Station. 1 to 3 fathoms, amongst Zostera. 
Hab, St. Vincent’s Gulf. 
70. PERNA AUSTRALIS. 
Modiola australis, Gray, Appendix to King’s Voyage. 
Station. Abundant at the roots of seaweed, and on Zostera flats 
in moderately shallow water. 
Hab. St. Vincent’s Gulf. 
A large species somewhat resembling in colour M. tulipa, Lam., 
from the West Indies ; but of a more contracted growth on the 
posterior side, and convexly dilated anteriorly. 
71. PERNA FLAVIDA. 
Volsella favida, Dunker, P. Z. 8. 1856, p. 364. 
_ Modiola flavida, Reeve, Conch. Icon. (Modiola) pl. 10. f. 77. 
Station. With P. australis. 
Hab. St. Vincent’s Gulf; Bay of Manilla (Cuming). 
Fam. VULSELLID&. 
72. VULSELLA LIM#®FORMIS. 
Vulsella limeformis, Reeve, Conch. Icon. (Vulsella) pl. 2. 
f.10a& 6. 
Station. Imbedded in sponges. 
Hab. St. Vincent’s Gulf. 
73. VULSELLA RUDIS. 
Vulsella rudis, Reeve, Conch. Icon. (Vulsella) pl. 2. f. 12. 
Station. In sponge. 
Hab. Port Lincoln. 
