266 Genus Ixodes 



Nymph (Fig. 266) : similar to % , except for the scutum, which is 

 more rounded. 



Larva (Fig. 267) : resembling both the % and o, but the scutum, 

 whilst comparatively broad, approximates more closely to that of the % . 



Neumann described the species from a % and a o found on 

 cormorant {Phalacrocorax carbo L.) from the mouth of the Forth, 

 Scotland, collected by W. Evans, of Edinburgh. Although he mentions 

 that the lot included a larva, he does not describe it. 



Our collection contains specimens from Great Britain : (N. 652) o, 

 from shag, Plymouth, ix. 1897, and (N. 667), $s, os, from Phalacrocorax 

 graculus, Cromarty, m. 1898 (W. Roy); both lots presented by 

 Hon. N. 0. Rothschild. The collection of Mr W. Evans, of Edinburgh, 

 contains the type specimens ( $ , o and larvae, examined by us) from 

 the cormorant, Fidra Point, Firth of Forth, XL 1906. 



Note: In a tube labelled "I. eudyptidis No. 13" at the British 

 Museum we discovered three % specimens agreeing very closely with 

 Neumann's description and figure of /. unicavatus. The specimens 

 were determined as I. eudyptidis by Neumann in 1905 ; only one of 

 the specimens possesses a hypostome. The ticks measure 8x5 mm., 

 and were collected from a cormorant by J. E. Harting (locality un- 

 recorded). The specimens differ from the type as follows: cervical 

 grooves well-marked ; the hemispherical protrusion opposite the scapular 

 angles is not visible in all the specimens ; the porose areas show a 

 slight indication of division in one or two specimens; the palpal 

 articles 2 and 3 are apparently of equal length, but the separation is 

 indistinct. In all other respects the specimens agree with Neumann's 

 description and figure, so that we refer them to I. unicavatus. 



49. IXODES LORICATUS Neumann, 1899. 



Figs. 268, 269. 



Lit. and Icon. : Neumann, 1899, pp. 139-142, Figs. 15-17 (reproduced). 

 Neumann, 1901, p. 285. 



Lahille, 1905, p. 29 (reprints description by Neumann, 1899). 

 Ixodes angustus Neumann, 1901, p. 284 (see I. angustus Neumann, 1899, on 

 p. 195 of this work) ; Neumann, 1910, p. 30. 



Male (Fig. 268) : Body oval, narrow, broader and rounded behind, 

 4'6 x 23 mm. or 3'7 x 1*8 mm. of the same colour as the unfed $. 



