170 Monographie des Poissons de Oidja 



ing in size as they pass off" laterally. In Helix militaris 

 there is about an equal number of laterals and marginals. 



The resemblance of these species to the genus Nanina 

 holds good also in the external characters of the animal. 

 The tail is long, gradually tapering towards a blunt extrem- 

 ity, which is bifid, being separated into two distinct pro- 

 cesses by a transverse, triangular, deeply-seated, mucus pore. 

 There is a distinct locomotive disk to the loot. Down the 

 centre of the back of the foot is a distinct line, from which 

 the granulations run obliquely down to a horizontal line of 

 furrows bordering the edge of the foot. This horizontal line 

 rises over the extremity of the tail, above the process which 

 overhangs the mucus pore. 



These species must certainly be removed from the genus 

 Helix, and even from the Helicinm, and placed among the 

 Vitrinince in the genus JSfanina. 



X. — Monographie des Poissons de Cuba compris dans la 

 sous-famille des Sparini. 



Par FELIPE POEY, 

 Professeue d'Histoire Naturelike a L'UNivERf^iTfi de i.a Havane. et membre 



CORRESPOXDANT DU LYCEE D'HISTOIRE XaTURELLE UE XEW YORK. 



Pretente le 29 Janvier, 1873. 



Familia 8PARIDI. 



La famille des Spares est fondee sur le geni-e Sparus 

 d'Artedi, Genera, p. 35 ; adopte par Linne et caracterise 

 principjilement par des molaires rondes en forme de paves 

 sur les cr)tes des ma,choires. C'est proprement la premiere 

 tribu de Cuvier, Regne Animal II, p. 181 , qui refiond aux 

 groupcs Pagrina et Sargina du Dr. Giinther, Catalogue, I, p. 

 412. Ce genre a ete conserve par Bloch et par Lacepede, 



