ELIOT : NUDIBRANCnS OF NEW ZEALAND. 345 



the ribbon of the radula, entirely decayed. Only scattered teeth, of the 

 ordinary hamate type remained. 



The form is probably a small Archidoris, perhaps A. nanula, Bergh, 

 but its appearance in life is unknown, and the preserved specimens 

 present no characters which would justify identification. The species 

 can accordingly be neglected. 



Doris longula, Abraham. 

 (Abraham : same paper and page as above.) 



The same may be said of this form. Like Doris granulosa it has lost 

 its colour, the intestines are decayed, and it can only be said that 

 it had rather stout liamate teeth. 



Hutton (Trans. jS^cw Zeal. Inst., vol. xiii, p. 203, 1881) doubtfully 

 identifies with D. longida specimens deposited by him in the Canterbury 

 Museum, but his description is not full, and it is difficult to say 

 whether his animal is really the same as Abraham's or to what genus 

 either are referable. 



CnROMODORis amcena, Checseman. 



Chromodoris amoena, Cheeseraan : Trans. New Zeal. Inst., vol. xviii, 



p. 137, 1885. 

 = Chr. fifjurata, Bergh : Mai. Tint, in Semper's Reisen, vi, 2, p. 71, 

 1905. 

 Four specimens from Whangarei Head, about 80 miles north of 

 Auckland, sent by Mr. Cooper. The general colour of the dorsal 

 surface, including the rhinopliores and branchite, is greyish-white. 

 The margin is marked by a rather broad stripe of lemon-yellow, in 

 whicb are seen imbedded a row of round bodies. There are 2-3 rows 

 of lemon-yellow spots on the sides of the body under the mantle and 

 traces of coloured areas on the back, which, though now grey and 

 white like the rest, were perhaps differontlj' coloured in life. 



The shape is high and stout, much as in Chr. Sempcri. The length 

 of the largest specimen is 23 mm., the height 10 mm., the breadth 

 10"5mm. The free tail is 6 mm. long. The margins of the rhino- 

 phorial and branchial pockets are very slightly raised. The branchiae 

 vary from 8 to 1 in number. In one specimen they are bipinnate, 

 being divided into 2-4 plumes at the tip. The tentacles are retracted 

 . and represented by two pits. 



The buccal mass is very large. The labial armature is yellowish- 



. green, and consists of rods somewhat bent or curved at the tip, whicli 



in some parts of the armature is bifid, in others entire. The radula 



; consists of 88 rows, of which four are undeveloped and shadowy, and 



there are 100-120 teeth on eitlier side of the rhachis. The rhachis 



bears a median tooth with a long base and a low cusp, which is not 



denticulate, though of somewhat irregular outline. The first lateral is 



of the shape usual in the genus and is denticulate on both sides, 



bearing on the inner side about 4 denticles. The other laterals are 



iil denticulate only on the outer side, the number of denticles being at 



[least 6. Near the end of the rows the main cusp diminishes and the 



^ifirst denticle increases, so that the tooth appears bifid. 



