T9I3-] N. Annandale : Indian Barnacles. 233 



p. 141, fig 4 (1906); Stewart, Mem. Ind. Mus. Ill, p. 33^ 

 pi. VII, fig 5 (male); 1911. 

 Scalpellum chitinosum , Hoek, Sib.-Exp., Mon. XXXIa, p. y;^, 

 pi. VII, fig. 4 (1907). 



This is a variable species, like all those in which the valves are 

 sometimes incomplete ; the "^^ complete" form, if it exists, is un- 

 known, Pilsbry's 5. imperjectum^ and S. sanctaebarharae^ are very 

 closely allied and may be only varieties or local races. I have seen 

 a specimen of the former, 5. chitinosum, Hoek, is certainly identi- 

 cal. The exact position of the carinal umbo is one of the variable 

 characters, 



Stewart {op. cit. supra) has given a detailed and excellent 

 account of the male and of the later development of both sexes. 



Scalpell'uyn gruvelii has been taken by the ' Investigator ' at 

 the following stations : — 



Sta. 249: Laccadive Sea, 7° N., 76°36'i5" B. ; 1022 fathoms 



(Types). 

 ,, 276: Laccadive Sea, 7°ir' N., 76°35'3o" E. ; 1006 



fathoms. 

 „ 277: S. of Ceylon, 5°48'i5" N,, 8o°56' E. ; 859—880 



fathoms. 

 " 306: Laccadive Sea, 9°2o' N., 75^24' E. ; 930 fathoms. 



There are specimens in the British Museum from a cable laid 

 at 1200 fathoms in the Indian Ocean in Lat, i4°2o' N. , Long. 52° 

 30' E. They were accompanied by Scalpellum velutinum and 5, 

 {Smilium) acutum, Hoek. S. chitinosum was taken off Sumbawa 

 and the Kei Is. in the Malay Archipelago in 794 and 1788 m. 

 (=434 and 977 fathoms). 5. imperfectum is from the N, Atlantic 

 and 5. sanctaebarbarae from off the coast of California. The type 

 of the former was attached to a specimen of 5. velutinum. It was 

 taken in 781 fathoms and others of the same form were taken in 

 852 and 1230 fathoms. S. sanctaeharbarae was dredged from 414 

 and 603 fathoms. 



Type No. ^-^ Crust. Ind. Mus. 



9. Scalpellum curiosum, Hoek. 



Scalpellum curiosum, Hoek, Sib.-Exp., Mon. XXXIa, p, 79, pi, 

 Vli, figs. 8, 8a, 8b (1907) ; Annandale, ///. Zool. ' Investi- 

 gator,' Crust. Ent., pi. IV, fig. 8 (1908); 



Scalt>ellum japonicum, id. {nee Hoek), Herdman's Pearl 

 Oyster Fisheries, V, p. 141 (1906), 



A specimen dredged by the ' Investigator' at station 268 (S. 

 of Cape OomorJn, Lat. 7°36'' N., Long. 78^5' E.) in between 556 



I U. S. Nai. Mtis. Bull. 60, pp. 75 and 77, figs. 30 and 31 (1907). 



