Wood-Mason, J.; Alcock, A. (1891). Natural history notes from H.M. Indian marine survey steamer 'Investigator', Commander R.F. Hoskyn, R.N., commanding. Series II, No. 1. On the results of deep-sea dredging during the season 1890-1891 Ann. Mag. Nat. Hist. VIII, Sixth series(XLIII): 16-34, plates VII-VIII