100 Memoirs of the Indian Museum. [Vou. IV, 
Indian Museum, three possess spines at the postero-lateral angle of the fourth abdominal 
somite, while, in all, the inner spine of the bifurcate process of the uropod is, as shown 
in Bigelow’s figure, slightly longer than the outer. 
The specimens examined are registered as follows :— 
3357 
> Australia, -. Queensland Museum. .. 19,76mm. 
3064 ; 
; Upolu, Samoa. -.  (purchased.) Fre eek shes retene 
‘0 Andaman Is. ( B. Ford, V. Ball, 6 
*“* (J. Wood-Mason. j TIGR eae OEM 
wi-$ Andaman Is. .. 'G.H. Booley. -. 29,61 and 75 mm. 
MTN. Cheval Paar, Ceylon. .. ‘LT. Southwell. .» 2019, 50-55 mm. 
ot Persian Gulf. .. F.H. Townsend. -- 2029, 27-51 mim. 
055 Mauritius. .. Stege. we LG) 4 Sn aim, 
I have also seen three examples, kindly sent me on loan by Mr. Alan Owston. 
These were found at Iriomote, Yayeyama, Liu Kiu Is. 
Pseudosquilla ciliata appears to be a common species, of constant occurrence 
in coral reefs, and has a wide distribution in Indo-pacific and Atlantic waters. In the 
former region it has been recorded from the Ogasawara Is., Japan (Fukuda), Hawaiian 
Is. (Owen, Randall, Miers, Eyd. and Soul., Dana, Brooks, Bigelow), Solomon Is. 
(Miers), Fiji Is. (Miers, Dana), Loyalty Is., New Britain and Ellice Is. (Borradaile), 
Australia (Miers), Arafura Sea (Pocock), New Guinea (Miers, Thallwitz), Amboina (de 
Man), Celebes (de Man), Sooloo Sea and Philippine Is. (Miers), Sumatra (Nobili), Timor 
(30 fms.), Ceylon (Muller, Tattersall), Minikoi (Lanchester), Maldives (Lanchester), 
Madras (Henderson), Red Sea (Nobili), Seychelles (Borradaile), Mauritius (Richters, 
Clark) , Réunion (Milne-Edwards, Hoffmann), Madagascar (Lenz) and from Diego Garcia, 
Wazin I. and Zanzibar (Borradaile). 
In the Atlantic the adult is known from Bermuda (Bigelow) Bahama Is. (Rankin, 
Bigelow), S. Carolina (v. Martens), Florida Keys, Porto Rico and Culebra Is. (Bigelow) 
and from St. Thomas (Bigelow, 20-23 fms. ; Brooks, 2 fms.). 
The larva has been recorded from the Indian Equatorial current (Jurich) from 
Ceylon (Tattersall) and from the Chagos Archipelago ; Alphonse Is., Amirante group ; 
Providence Is. and between Mauritius and Cargados (Borradaile). In the Atlantic it 
has been recorded from the Sargasso Sea and the N. Equatorial current (Hansen). 
2. Pseudosquilla ornata, Miers. 
1861. Pseudosquilla oculata, Heller, Verhandl. zool-bot. Ges. Wien, XI, p. 497. 
1865. Pseudosquilla oculata, Heller, Reise ‘ Novara’ Exped., Crust., p. 124. 
1880. Pseudosquilla ornata, Miers, Ann. Mag. Nat. Hist. (5), V, p. 111, pl. iii, figs. 5, 6. 
1887. Pseudosquilla ornata, de Man, Arch. f. Naturgesch., LIII, i, p. 571. 
1894. Pseudosquilla ornata, Bigelow, Proc. U.S. Nat. Mus., XVII, p. 500. 
1894. Pseudosquilla ornata, Ortmann, Denk. med-wiss. Ges. Jena, VIII, p. 60. 
1907. Pseudosquilla ornata, Borradaile, Trans. Linn. Soc., Zool. (2), XII, p. 213. 
Pseudosquilla ornata is closely allied to P. ciliata but differs from it in the following 
characters :— 
