44: Dr. N. Anr;autlale on new Barnacles. 



organic life; but with a working hypothesis of this kind we 

 at least advance a step or two further. 



Juot as little as we can explain the magneto-electric 

 phenomena bj means of mechanics alone, so do we find that 

 these two no longer suffice for the organic phenomena; on 

 the contrary, in their place also we must now assume the 

 existence of a special form of energy, ujjon which, from its 

 most conspicuous quality, I bestow the designation " sexuality.'' 

 In this force tiiere is, of course, just as little of the super- 

 natural as in the other forces of nature. And that it is 

 likewise already capable of being expressed in figures and 

 is subject to mathematical treatment I shall shortly show 

 elsewhere in a paper on the mathematical equations of the 

 paitheno-ova and their fertilization. 



X. — Natural History Notes from the R.I.M.S. Ship 'In- 

 vestigator,' Capt. T. H. Heming, R.N., commandiay. — 

 Series III., No. 13. Two new Barnacles dredged in 1905-6. 

 13y N. Annandale^ D.Sc, Indian Museum, Calcutta. 



Genus Dicuelaspis. 

 Dichelaspis transversa, sp. n. (Figs. 1, 1 a.) 



Capitulum bullate, with the orifice on the upper surface 

 and almost parallel to the base, with a well-defined lobular 

 projection on each side of the orifice at its upper extremity, 

 with three complete valves and traces of a second pair. Scuta 

 linear, sinuous or curved, short, \uiclef t ; carina narrow, very 

 short, almost straight, somewhat variable, without either a 

 disk or a fork at its base ; terga totally uncalcified, repre- 

 sented by a pair of amorphous chitinous patches. Peduncle 

 stout, constricted above, as long as or longer than the 

 capitulum. 



Mandible with five teeth ; the four innermost short, 

 simple, subeqnal ; the outermost large, sharply pointed, 

 widely separated from the others. 



Penis longer than body, very stout, constricted distally 

 and ending in a bunch of fine, curved, filiform processes ; 

 the whole organ densely covered with rings of minute, laterally 

 tlattened, triangular, chitinous spines, which have a flattened 

 (le[)ressed base ; a few larger chitinous structures with a 

 jsubcouical base and a recurved distal point scattered, with 

 some short bristles, near the distal extremity. Anal ap- 



