496 Transactions. 



Plate XVIII. / 



Fig. a. Eggs of gurnard (Trigla himu), 163 hours (just hatching), 9-8° 0. 

 Fig. b. Newly hatched larva. 



Fig. c. Larva, forty-eight hours after hatching. / 



Fig. d. Larva, four days after hatching. 

 Fig. e- Larva, six days after hatching. 



Fig. /. Egg (unfertihsed) of flounder {Rhombosolea pleheius). 

 Fig. g. Same, twenty-four hours after fertilisation. 



Plate XIX. 

 Fig. a. Newly hatched larva of flounder. 

 Fig. h. Same, fifth day after hatching. 



Fig. c. Egg of brill (Caulopsetta scapha), just before hatching. 

 Fig. d. Egg of sole (Peltorhamphus novce-zealandice), four hours after 



fertilisation ; segmentation commencing. 

 Fig. e. Newly hatched brill. 

 Fig. /. Larval sol \ three days after hatching. 



Plate XX. 

 Development of Crayfish [Palinurus edwardsii). 

 Fig. a. Larva on emerging from egg, showing the plumose antennae. 

 Fig. h. Same after a few hours, showing plumose appendages on the 

 3rd and 4th pereiopoda. 



Art. XLIV. — Geological Notes on South-west of Otago. 

 By Dt. p. Marshall, Otago University, Dunedin. 

 [Read before the Otago Institute, Hth November, 1905.] 

 Plates XXI-XXIII. 

 All geologists who have visited the fiord region of New Zealand 

 have united in ascribing the peculiar physiographical features 

 of the district to the effects of glacial erosion. The most recent 

 writer on the subject, Mr. E. C. Andrews, of New South Wales, 

 has given a fuller and more satisfactory description of the pro- 

 bable development of the land forms than any earlier author. 

 His paper on the district, published in the " Transactions of 

 the Australasian Association for the Advancement of Science," 

 vol. X, contains references to previous literature on the subject. 

 It is therefore not proposed to reconsider the origin of the fiords 

 in this paper, though it must always be remembered that many 

 eminent authorities regard ice as a preservative rather than a 

 destructive agent of a land surface. By such geologists crustal 

 movements, warping, and faults are most frequently invoked 



