MEMOIRS AND PAPERS : WALTER PERCY SLADEX. 
273 
1884. Part IV. The Nari or Oligocene Series, pp. 
247-272; Plates XXXIX.-XLIII. 1884. Part V. 
The Gaj or Miocene Series, pp. 273-367 ; Plates 
XLTY.-LY. 1885. 
A Monograph of the Fossil Echinoidea of the Makran 
Series of the Coast of Beluchistan, and of some Islands 
in the Persian Gulf, collected by the Geological Survey 
of India. (A supplementary part to the Monographs 
of the Fossil Echinoidea of Sind.) " Palseontologia 
Indica," series 14. Part YI., pp. 369-382 ; Plates 
LYI.-LYIII. 1886. 
A Monograph of the Tertiary Echinoidea of Kachh and 
Kattywar, collected by the Geological Survey of India. 
" Palseontologia Indica," series 14, pp. I.-YL, 1-91 ; 
Plates I.-XIII. 1883. 
On some Points in the Morphology and Classification of 
the Salenidae, Agassiz. Ann. and Mag. Nat. Hist., 
ser. 5, Yol. XIX., pp. 117-137, February, 1887. 
On the Anatomy of the Perignathic Girdle and of other 
Parts of the Test of Discoidea cylindrica Lamarek. sp. 
Linn. Soc. Journ. ZooL, Yol. XX., pp. 48-61, Oct., 1886. 
A Note upon the Anatomy of the Perignathic Girdle of 
Di^coi ea cylindrica Lmk. sp., and of a species of 
Echiiwconus. Ann. and Mag. Nat. Hist., ser. 6, Yol. 
lY., pp. 234-239, Sept., 1889. 
On the Family Arbaciadae, Gray. Part I. The Morphology 
of the Test in the Genera Ccdoijleurus and Arhacia. 
Linn. Soc. Journ. ZooL, Yol. XIX., pp. 25-57, May, 
1885. 
On the Echinoidea of the Mergui Archipelago, collected for 
the Trustees of the Indian Museum, Calcutta, by 
Dr. John Anderson, F.R.S., Superintendent of the 
Museum. Linn. Soc. Journ. ZooL, YoL XXL, pp. 
316-319, Oct., 1889. 
The Classificatory Position of Hemiaster elongatus Duncan 
and Sladen ; a Ileply to a Criticism by Prof. Sven 
