102 Dr. W. T. Caiman on 



Localities. Lat. 14° 54' N., long. 23° 4.2' W. (Cape Verde 

 Ids.), 990 fath. C./S. 'Britannia. 2$. 



Lat. 14° 20' N., long. 52° 30' E. (Gulf of Aden), 1200 

 fath. C./S. 'Electra.' 5£ (N. Annandale det.). 



Remarks. The seven specimens differ in no noteworthy 

 respect from one another or from a specimen from ' Chal- 

 lenger' Station 170 (near Kermadec Islands), which is the 

 sole survivor of the four syutypes. I find no reason to 

 dissent from the conclusion of Hoek and Annandale that 

 Gravel's S. longirostrum is a synonym of this species, 

 although in none of the specimens examined is the sub- 

 carina so tall as in Gravel's figure. Two of our speci- 

 mens, in which the capitulum measures 12 mm. in length, 

 arc twice as large as any hitherto recorded. The penis is 

 short and the caudal appendages' appear to be entirely 

 wanting. 



Scalpellum (SmUium) bengalense, Annandale. 

 (Text-fig. 1.) 



Scalpellum hengalense, Annandale, Ann. & Mag. Nat. Hist. (7) xvii. 



L906, p. 395; id. Illustr. Zool. 'Investigator,' Crust. Entom. pi. i. 



fig. 5, 1907; Stewart, Mem. Ind. Mus. iii. 1911, p. 44, pi. vi. 



figs. 7, 10. 

 S. {Sniilium) bengalense, Annandale, Rec. Ind. Mas. v. 1910, pp. 147, 



15:?, text-fig. 1 ; id. Mem. Ind. Mus. vi. 1916, p. 129, pi. vi. tigs. 3, 4, 



pi. vii. fig. 3, pi. viii. figs. 1-5. 



Locality. Lat. 12° 43' N., long. 45° 17' E. (Gulf of Aden), 

 260 fath. C./S. ' Colonia.' About 50 g , 3 $ . 



Remarks. Annandale has called attention to the resem- 

 blance which the hermaphrodite individuals of this species 

 bear to those of S. squamuiiferum Weltner — a resemblance 

 so close that they " might almost have been considered 

 specifically identical/' — while the males of the two species 

 are remarkably different. The material now examined 

 confirms this general statement, but shows that the dis- 

 tinguishing characters as given by Annandale require some 

 modification. 



Scalpellum hengalense was originally described from eight 

 syutypes and the length of the capitulum was given as 10 mm. 

 Annandale later stated that the type-specimens were imma- 

 ture and described " adult" specimens, but did not indicate 

 their size; measurements taken from his figure published in 

 1910 show the capitular length to be about 14 mm. The 

 statement as to the "immaturity "' of the original specimens 

 requires qualification. The British Museum received from 



