THE FISHES OF THE JUAN FERNANDEZ ISLANDS 53 



tical or in nearly related species. For most of the genera, to which these spe- 

 cies bolong, no representates are hitherto known from the Chilean coast 

 (Nos. 14, 15, 30, 31, 32, 33, 34). 



8. Some species can not be included in the above groups. Labrichthys 

 gayi belongs to a genus of Indo-Pacific distribution. Chilodactyliis monodactylus 

 (if identical from the dififerent localities) has been stated from three widely se- 

 parate localities in the South Temperate Zone. Callanthias platei represents a 

 genus, which as far as known has a very disconnected range: Juan Fernandez, 

 Tasmania, Mediterranean, and Madeira, 



List of the species collected by Mr. K. Backstroxm, zoologist to the 



Swedish Expedition. 



1. Atherinichthys gracilis Steind. — Chirostoma gracile Steind. 1897, 

 1. c. p. 314 (Juan Fernandez). 



Twelve specimens, 87 — j'] mm. (s. c). Caught in nets, Masatierra 



''A 1917- 



The relative measurement of five specimens, 104 — 93 mm. tot. length, 

 (87 — 78 s. c), are as follows: Height in length 8 V4 — 7,3 (6,9—6,1 s. c); head 

 5, a — 5,5 (4,3—4,6 s. c); eye 3,4—3,1 in head; snout 3,3—3,6; interorbital space 

 4»o— 3f5. 



2. Lotella feriiandeziaiia n. sp. — Lotella rhacimis Steind. 1897, 1. c. p. 

 325 (Juan Fernandez) — Delfin 1899, 1. c. p. 134 (ref.) — Lotella phy sis Steind. 

 1903, 1. c. p. 208. 



Two specimens, 155 and iii mm. (s. c); Masatierra ^Vs 1917. 



Description of the type-specimen, 155 mm.: 



B. 7, D. 5/58, A. 57, P. 25, V. 9. Height of body 4 ^4 im total length, 

 4,1 without caudal; head resp. 4,1 and 3,6 in the same. Eye 4,9, snout 3,9, 

 and interorbital space 4,4 in length of head. Eye 1,23 in snout and i,ii in in- 

 torbital space. Praedorsal region not quite 3 ^/4 in total length without caudal, 

 length of pectoral 1,6 in head. Height of caudal peduncle 23,8 in tot. length 

 (s. c). Longest ventral ray about i ^/i in length of head. 



Teeth in upper jaw arranged in an outer row of strong conical teeth and 

 behind this a bar of small teeth, which form no distinct rows. In the lower 

 jaw the symphysial teeth are arranged as those in the upper jaw. Laterally 

 there also is a series of strong, conical teeth, inside of this there are, however, 

 no teeth, whereas a series of very small teeth form an more or less disconti- 

 nous outer row on the labial side of the large teeth. 



Colour in spirits brownish, lighter on throat and abdomen. Barbel pale 

 yellow, only with some traces of a darker pigmentation on its anterior side. 

 Lateral line light coloured. Vertical fins blackish brown with a narrow whitish 

 edge. Pectorals dusky, ventrals pale yellowish. 



In the smaller cotype the proportions are somewhat different: Height in 

 length 5,6 (5,0 s. c), head 4,3 (3,8), eye 4,1, snout 4,1, interorbital space 4,7 in 



