Frost.—Otoliths of Fishes from Tertiary of New Zealand. 609. 
process anteriorly, with a backward inclination ; frontal rim curved with 
two indentations, ventral rim curved.  Sulcus consists of an oval ostium 
with m and a duplicated cauda. 
Occurrence.—Three examples from Pukeuri, received from Geological 
Survey of Ne New Zealand. (Type specimen, coll. Geol. Surv. N. Z.) 
Observations.—This fossil otolith resembles in a remarkable way the 
otolith of the living New Zealand species Physiculus bacchus. In no other 
species that has passed through my hands is a double cauda to be seen. 
e two grooves are equally developed, and both open on the posterior 
rim, rear of otolith being identical in living and fossil species. Ante vend 
they are somewhat different, the oval ostium not being discernible 
Physiculus bacchus in specimens in my collection, but with further aurea 
this may be more apparent. Also, the otolith of living species has an 
anterior projection which is absent in fossil. In both there is a dorsal 
horn-like съ шара ни in Physiculus bacchus, but with а 
backward inclinatio the species now оной. The resemblance is 
jea and 1 ase béton called this species Otolithus ( Physiculus) 
Een (Miocene) : Oamaru series. 
er o сасе) planus Koken n. var. novae-zeelandiae. (Plate 61, 
6.) 
Dimensions.—4 X de 
. — Description.—Sha vu. outer side with parci furrows, inner 
side flat; serrated ate and below. Sulcus жеен across otolith ; 
ostium vide аре open; cauda narrow with two ee 
Oceurrence.—A. Huge example from Pukeuri, received pum Geological 
Survey of Eras Zealand. (Type specimen, coll. Geol. Surv. N.Z.) 
Observations.—Outer side almost exactly as in 0. onde iceps) planus 
Koken (3, pl. 4) from the Upper Oligocene of Sternberger Gestein; inner 
side corresponding also with the exception of ostium, which in O. ( Raniceps ) 
planus is narrow and closed up in front, while in variet described 
ostium is wide, and open in front. I have therefore called this Otolithus 
(Raniceps) planus Koken’ var. novae-zeelandiae 
Age.—Tertiary (Miocene): Oamaru series. 
Otolithus aiio pukeuriensis n. sp. (Plate 61, fig. 7.) 
Dimensions.—7 x 34 mm. 
Description. ора long-ovate; outer side concave, inner side convex ; 
serrations on edges. Ostium and cauda equal; constriction in middle 
of sulcus. 
Occurrence.—Single example from Pukeuri, received from Mr. H. J. 
Finlay. (Type specimen, coll. H. J. Finlay.) 
Observations.—The species described differs from Otolithus ( Merluccius) 
obtusus Koken (3, в 11) in contour, іп concavity of outer side, and also 
has angle on fronta higher. The cauda also approaches nearer posterior 
rim than in "imi the front of otolith slopes as in many of the living 
Gadidae, but in Merluccius vulgaris is more rounded, with angle lower. 
The sulcus is unmistakably that of Merluccius, and I have therefor referred 
this example to a new species Otolithus (Merluccius ) pukeuriens 
Age.—Tertiary (Miocene): Oamaru series. 
20—Trans. - 
