1912.) S. Kemp & R. B.S. SEwELL: Notes on Decapoda, III. 31 
Sub-family MAIINAE. 
Maia gibba, Alcock. 
Mata gibba, Alcock, 1899, p. 56, and Ill. Zool. Invest., Crust., 
pl. xxi, figs. 5, 5a. 
Ten specimens, ranging from 18 to 40 mm. in the length of 
the carapace and rostrum, were found at St. 391. 
In the smaller examples four spines in the median line of 
the carapace are decidedly longer than in larger individuals, in 
which they are scarcely distinguishable from the general tuber- 
culation of the surface. In young specimens also five spines on 
the lateral margin of the carapace are more conspicuous than 
in the adult and thus resemble M. mierst, Walker (1890, p. 113, 
pl. vi, figs. I—3), though the distinctions between the species 
still remain quite definite. 
Maia gibba was hitherto known only from the three type 
specimens obtained in the Andaman Sea. 
LIST OF REFERENCES. 
Alcock, A., 1894.—‘‘ Natural History Notes from H.M.I.M.SS. 
‘Investigator,’ ii, No. r. On the Results 
of the Deep-sea Dredging during the season 
1890-91’ (continued).—Ann. Mag. Nat. 
Hist. (6), xiii, p. 225. 
Alcock, A., 1899.—The Deep-sea Brachyura collected by R.I.M.S.S. 
‘ Investigator.’ Calcutta. 
Alcock, A., 1901 —Catalogue of the Indian Deep-sea Crustacea 
Decapoda Macrura and Anomala in the 
Indian Museum. Calcutta. 
Alcock, A., 1901 —Catalogue of the Decapod Crustacea in the Indian 
Museum. Pt. I, Brachyura. Fasc. i, In- 
troduction and Dromiacea. Calcutta. 
Alcock, A., 1905.—Catalogue of the Decapod Crustacea in the Indian 
Museum. Pt. II, Anomura. Fasc. j 
Pagurides. Calcutta. 
Alcock, A., 1906.—Catalogue of the Decapod Crustacea in the Indian 
Museum. Pt. III, Macrura. Fase. i, The 
Prawns of the Peneus group. Calcutta. 
Bouvier, E. L., 1900.—Expédttions scientifiques du‘ Travailleur’ et 
‘Talisman.’ Crustacés Décapodes, i. Paris. 
Bouvier, E. I., 1904.—‘‘ Crustacés décapodes provenant des 
campagnes du yacht Il’ ‘Hirondelle’ (1886 
—88). I. Brachyures et Anomures.’’—Rés. 
Camp. Sct. Monaco, Fasc. vii. Monaco. 
Bouvier, E. L., 1908.—‘‘ Crustacés décapodes (Pénéidés) prove- 
nant des campagnes de 1’ ‘ Hirondelle’ et de 
la ‘ Princesse Alice’ (1896—1907).”— Rés. 
Camp. Sct. Monaco, Fasc. xxxiii. Monaco. 
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