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ation. In the smaller specimens the breadth "f the capitulum ;it the bas 

 about the same .is at the height of the upper latus, In these the carinal margin '>f the tergum 

 is not si. distinctly divided into two parts, the apex of the carina does not project freely and 

 the umbo of the carinal latus is nol ^»-.it « -< 1 al the tip "l a triangle which projects beyond the 

 line of the carina. As 1 feel convinced that these smaller specimens, some <>f which were 

 hed to the larger, belong i" this species, I am inclined to admit that several of these 

 diffei result from there being a considerable difference with regard to age and maturity 



between the specimens at my disposal. 



Remark when correcting the proof of the description given above. 



This species is, without doubt, nearly related t" Sc. rociaói/e Annandale' from Bali Straits, depth 



fathoms = ,>n> m. The characteristic figure Annandale gives of the group of specimens 



of bis new species is perhaps not quite m> useful for recognizing an individual specimen. As 



occur differences between bis description of the valves, of the appendages, mouth- 



ind mine, I think it better therefore to keep my species separate; future investigators 



will, no doubt, easily find out whether the two species are identical or not. 



Scalpellum imbricatutn n. sp. PI. YII1, fig. 15 anti 15a. 



Valves 1 |. Surface of valves covered by a slightlj villous chitinous membrane. Carina 



large, nearly reaching to the apex "f the tergum, simply bowed, roof furrowed longitudinally. 



Rostrum narrow, indistinct. Infra-median latus narrow, with the umbo at the apex. Carinal latus 



with the umi", at a short distance from the base, slightly projecting beyond the line of the carina. 



This species is represented by one specimen only. 



The capitulum is rather narrow, the carinal margin regularly bowed, the curvature 



ly reaching to the apex of the scutum. The surface is covered by a tliin slightly villous 



membrane which makes it difficult at first sight to distinguish the margins of the valves. There 



an- slight intcrspaces between the different valves, specially distinct in the corner where the 



upper latus, the carinal and infra-median latera meet. 



The scutum is quadrilateral ; the length not quite twice the breadth. The apex is 

 pointed and slightly overlaps the tergum. 



The tergum is triangular, its occludenl margin nearly quite straight. The apex i- 

 bluntly pointed and hardly produced. 



The carina is very large, nearly reaching to the tip of the tergum. It lias a very 

 pronounced curvature. It has well developed sides and a roof that increases in breadth though 

 not very much from th<- apex downwards. The roof is distinctly furrowed longitudinally. 



The upper latus is pentagonal; its umbo is at the apex which fits into the angle 

 formed by the scutal margin of the tergum and the lateral margin of the scutum. 



The rostrum (PI. VIII, fig. 1 5 a) is narrow, slightly increasing in breadth downwards, fitting 

 :lv between the rostral margins "i the rostral latera, more or less concealed by membrane. 



1 ' Malaysian Barnacles in ilic Indian Museum. Memoirs of thi l. I, 5. 1905, p. 77, 



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