376 THE Kl;^. x. r. r. stkbbing o.v 



Lepas ai;stralis J)nrwiii. » 



1M51. Lepas australis Darwin, Monogr. Cinip., Rmv 8oc., a^oI. i. 

 p. 80, pi. 1. fig. 5. 

 This species wjis tM.keu in King (leoi-ge's Sound, on the slioi'e 

 after a gale, Sept. 15, IDIO. 



Fain. ]? A L AX I D .7^. 

 18;")4. Jialaiiidu' J)ar\vin, Monogr. Cirrip., R;iy Soc, vol. ii. p. 33. 



Cen. Elminius Leach. 

 1825. Khniii.ius Leach, Zoological Journal, vol. ii. 



Er.Mixnis kixgii (Irny. 



1831. Jillininius kiixjii (h-^Yy Zoo]o^ici\] Miscellany, p. 13. 



1854. ,, ,, Darwin, Monogr. Cirrip., Ray Soc, vol. ii. 



p. 348, pi. 11. figs. 6 «-6 e. 

 1911. E. kin(/i Ortmann, Princeton Univ. Exp. Patagonia, p. 637. 



Points by which I have verified this species ai'e the scutum 

 Avithout an adductor ridge, the labruin deeply notched, with five 

 little teetli on each side, the mandible with four or fi.ve teeth. 

 Darwin s])eaks of the first pair of cirri as ha\ing " one ramus 

 nearly twice as long as the other." In the specimens dissected, 

 the difference was not so considerable. The penis was stout 

 except near the apex in one specimen, the thin part considei-ably 

 prolonged in the other. 



Mr. Vallentin's specimens were taken at low water of a spring 

 tide affixed to Mytilas ednlis in Stanley Harbour. He speaks of 

 tliem as scarce. 



EXPLANATION OF THE PLATES. 



Plate I. 



Taiiais oJilini Stel)l)iiig. 



ti.s. Line indicating natural size of female specimen figured below. 



C. Dorsal view of head and first perieon se>>inent, with first antenna' and first 



gnathopods ; frontal line of head conjectural. 

 J'l., ttrp. Dorsal view of pleon, with left nrojiod. 

 oc, a.s., a.i. Eye, first and second antenna'. 

 VI., M.T. 1, mxp. Mandible, first maxilla, maxilli])eds. 



ff>i.l, gn.2, prp.l, pvjp. 5. First and second gnathopods, first and fit'tli ] era opods. 

 ■iirj). Right uropod. 



All the separate parts arc magnified to a uniform scale, exrei)t the terminal joint 

 of the fifth peraopod, which is lurther given in higher magnification. 



P(..ATE 1 1. 



K.vosplutroma calcareus (Dana). 



n.s. Lines indicating natural size of male s])ecimen figured below in dors^a] aspect. 

 C.V. Ventral view of cejihalon with side-jilates of first ju'raiin scgn.ent, to give an 



idea of the epistome and first and second antenna' in jiosition. 

 j)1p. 1. The first pleo])od, along with the male organs on the last ]iera(in segment. 

 plp.2,'6,-i.o. Second, third, fourth, and fifth pleojiods, \\ itli ajiical parts of fourth 

 and (lltli niuro lii;;hl\' magnified. 



