568 PROFESSOR E. P. WRIGHT ON THE TEREDIDA. 
approximate, and at last converge to a point at.one side of the blunt termination: on 
the other, or outer half, the sculpture consists of irregular wavy lines, correspondin g 
probably to those of the growth of the shell. The “auricle” is well marked, equallin g 
in size the * triangular area;" it is nearly twice as broad as long, it is gently arched, 
and the sculpture is the same as that on the outer part of the body portion. The cal- 
losity of the hinge-margin is well developed ; the subumbonal blade is flat and strongly 
sickle-shaped. "The accessory plate is very feebly developed. 
The palettes are about $ an inch in length. The stalk is short and slender; the blade 
consists of a number of large, very loosely imbricated scales, arranged in a V-shaped 
series, one over another, from the apex of the stalk. A central core-like body runs 
up the blade, which is slightly convex on its outer, somewhat flat on its inner surface. 
This pretty and interesting species was presented to the British Museum by Miss 
Saul, after whom I named it in manuscript in 1862, with Dr. J. E. Gray's permission. 
The shelly tube is well calcified, like those of many of the timber-boring Teredines; 
these tubes are closed in when the animals have bored either to or too near the surface 
of the timber. The specimens came from Port Phillip, Australia. 
DESCRIPTION OF THE PLATES. 
PLATE LXIV. 
Fig. 1. Calobates australis. Portion containing the siphonal tubes and palettes. Natural size. 
Fig. 2. Siphonal tubes and palettes. Enlarged. 
Fig. 3. Siphonal tubes and palettes. Side view. 
Figs. 4, 5. Palettes. Inner and outer view. 
Fig. 6. Calobates thoracites. Natural size. 
Fig. 7. Siphonal tubes and palettes. Enlarged. 
Figs. 8, 9, 10. Outer, inner, and side view of palettes. 
Fig. 11. Front view of valve. 
Fig. 12. View of interior of valve, showing the spongy calcareous growth. The subumbonal blade was 
unfortunately broken in this specimen before it was given to the artist; but it agreed in every 
respect with Mr. Gould's description. 
Prare LXV. 
Fig. 1. Kuphus mannii, natural size. (This specimen is about an inch the shorter of the two referred to.) 
Fig. 2. Valve, inner surface; and fig. 3, outer surface. 
Fig. 4. Sculpture on part of the triangular area and central portion, enlarged. 
Fig. 5. Siphonal tubes and palettes, enlarged. 
Figs. 6, 7, 8. Outer, inner, and side view of palettes, enlarged. 
Fig. 9. Nausitora saulii. Valve, outer surface, slightly enlarged. 
Fig: 10. Valve, inner surface. 
Fig. 11. Sculpture on triangular area. 
Fig. 12. Sculpture on central portion. i ; 
Figs. 13, 14, 15. Palettes of ditto. Fig. 13, natural size; figs. 14 & 15, outer and inner view of ditto, 
| enlarged; figs. 13^, 14/, 15', same palettes, much enlarged (inserted by mistake of the artist)- 
Figs. 16, 17. Kuphus arenarius (from Proc. Zool. Soc. 1857, Mollusca, plate xxxix. fig. 3). Palettes: 
Size, 
RG re N SI ee 
