3G0 Mr. E. A. Smith on the Genera 



piscivorous Carnivora, naturally keeps tliem erect and 

 functional in the water, and their increase in length and 

 number supposedly enables Cijnogale to thrust its head with 

 safety into the lurking-place of its prey, and to ascertain 

 with accuracy the shape and size of the space, while a further 

 function of the mystacial tufts is to supj)ly iuformation as to 

 the exact whereabouts of the hiding fish or crab or mollusc, 

 if these invertebrates form, as perhaps they do, a portion of 

 its usual diet. 



From the upward aspect of the nostrils — a character in 

 which these orifices surpass those of otters and seals, — it may 

 be inferred that Cynogale is in the habit of lying submerged 

 with only the tip of the nose exposed above the surface. 

 Since concealment underwater can hardly be for the purpose 

 of protection from enemies, its object may be assumed to be 

 predatory ; and it may be suggested that the modification in 

 question — unique in its extent, 1 believe, in the Carnivora — 

 is of service to Cynogale when lying in wait near the bank of 

 a stream for small mammals or birds that may frequent the 

 banks or come to drink. 



If this be the correct interpretation of the facts, it helps 

 us to understand the restriction to the head of practically 

 all the evidences of the amphibious habits of Cynogale. 



EXPLANATION OF PLATE XIV. 



Fiy. 1. Muzzle and rhinarium from above, showing the horizontcal and 

 dorsal position of the nostrils. The vibrissiB of the left side 

 omitted, those of the right mostly cut short. 



Fiy. 2. The same from the front, the vibrissse omitted. 



F{y.2>. The base of the ear. tr., tragus; a.tr., antitragus; «./^., anti- 

 helix (supratragus) ; h., bursa. 



Fig. 4. Left fore foot from below. I and 5, first and fifth digits. 



Fiy. 5. Left hind foot from below. 1 and 5, first and fifth digits. 



Fiy. 6. Anal and genital area of adult female, a., anus ; yl., orifice of 

 perfume-pland ; v., vulva. 



Fiy. 7. The same of immature female. 



Fiy. 8. Anal and genital area of immature male, a., anus; s., one sac of 

 scrotum ; yl., supposed pores of perfume-gland ; p., penis. 



XXXII. — Oft the Genera Eglisia, Calloshacum, Mesalia, 

 Ttnritellopsis, and Tacliyrhynchus. By Edgar A. 

 Smith, l.ii.O. 



Most of the species referred to in this paper have been 

 referred to Turritella, Eglisia, or Mesalia, some rightly 

 located, others incorrectly. 



