Jennings. — Bevision of the Cirripedia of New Zealand. 57 



Family LEPADIDAK 

 Lepas anatifera Linnaeus. 



Lepas anatifera Linnaeus, 1758, Systema Naturae, 10th ed., p. 668 ; 

 Darwin. 1851, p. 73 ; Gravel, 1905, p. 108 ; Pilsbrv, 1907, p. 79 ; 

 Chilton, 1911a, p. 571; L. S. Jennings, 1915, 'pp. 285, 288, 

 figs. 1 {a, b, c), 2. 



Specific Diagnosis. — " Valves smooth, or delicately striated. Right- 

 hand scutum alone furnished with internal umbonal tooth : uppermost 

 part of peduncle dark-coloured. Filaments, two on each side." (Darwin.) 



Var. (a). " Scuta and terga with one or more diagonal lines of dark 

 greenish-brown, square, slightly depressed marks." (Darwin.) 



Var. (b). " Carina strongly barbed." (Darwin.) 



Var. (c).* ;l No trace of an umbonal tooth on either scutum. The 

 carina is not barbed and square patches on the capitulum are not visible." 

 (Jennings.) 



Localities. — General type : Sunday Island, Kermadecs (Bell and W. R. B. 

 Oliver). Locality unknown — Specimens in Canterbury Museum. 



Var. (b) : Sunday Island, Kermadecs (W. R. B. Oliver). 



Var. (c) : Chatham Islands (Miss S. D. Stand) ; hull of " Terra Nova," 

 Lyttelton (C. Chilton) ; Waitakerei River, washed up on beach (W. R. B. 

 Oliver). 



Lepas hillii Leach. 



Pentalasmis hillii Leach, 1818, Tuckey's Congo Exped., p. 413. Lepas 

 hillii Darwin, 1851, p. 77, pi. i, fig. 2; Gravel, 1905, p. 110, 

 figs. 124. 125 ; Pilsbrv, 1907, p. 80, pi. viii, figs. 2, 7 ; Jennings, 

 1915, p. 287. 



Specific Diagnosis.— " Valves smooth : scuta destitute of internal um- 

 bonal teeth ; carina standing a little separate from the other valves, with 

 the fork not close to the basal margin of the scuta ; uppermost part of 

 the peduncle either pale or orange coloured. Filaments three on each side." 

 (Darwin.) 



Locality. —Hull of " Terra Nova," Lyttelton Harbour (C. Chilton). 



Lepas pectinata Spengler. 



Lepas pectinata Spengler, 1793, Shifter Naturhist. Selbshabet, 2 B., 

 2 H., Tab. x, fig. 2 ; Darwin, 1851, p. 85, pi. i, figs. 3, 3a ; Hutton, 

 1878, p. 329 ; Gravel, 1905, p. 107, fig. 119 ; Pilsbry, 1907, 

 p. 81, pi. viii, figs. 4-8 ; Chilton, 1911a, p. 571 ; Jennings, 1915, 

 p. 286 ; Borradaile, 1916, p. 131. 



Specific Diagnosis. — " Valves thin, coarsely furrowed, often pectinated. 

 Scuta with a prominent ridge extending, from the umbo to the apex, close 

 to the occludent margin ; fork of the carina with the prongs diverging at 

 an angle of from 135° to 180°. Filaments absent, or only one on each 

 side." (Darwin.) 



Var. (a). ' Upper part of the terga (bounded by the two occludent 

 margins) produced and sharp ; surface of all the valves often coarsely 

 pectinated, and with the carina barbed." (Darwin.) 



*This variety has been described as a new species by Borradaile, under the name 

 L. affinis (see Borradaile, 1916, p. 131, and 1917, p. 229).— C. C. 



