3(50 Mr. E. A. Smith on (he Genera 



piscivorous Carnivora, naturally keeps them erect and 

 functional in the water, and their increase in length and 

 number supposedly enables Vynogale 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 niystacial tufts is to supply information as to 

 the exact whereabouts of the hidinsi 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 oritices surpass those of otters and seals, — it may 

 be inferred that Cijnogale is in the habit of lying submerj;cd 

 with only the tip of the nose ex|)()scd above the surface. 

 Since concealment underwater can hardly be for tlic purpose 

 of protection from enemies, its ol)ject may be assumed to l)e 

 predatory ; and it may be suggested that the modification iu 

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

 is of service to Cynogole when lying in wait near tlie bank of 

 a stream for small mammals or birds that may frequent the 

 banks or come to drink. 



Iftliis 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 Cijnogale. 



EXPLANATION OF PLATE XIV. 



Fig. 1. ^IuzzIp and rhinariuni from above, sliowing the liorizontal and 

 dorsal position of the nostrils. Tlie vibrissae of the left side 

 omitted, tliose ot the ri^ht mostly cut .short. 



Fiff. 2. The same from the front, tlie vibrissie omitted. 



Fig. 3. The base of the ear. tr., tragus: ci.tr., antitragus; ff.^., anti- 

 helix f supratragus) ; b., bursa. 



Fig. 4. Left fore foot from below. 1 and o, first and fifth digits. 



Fig. 5. Left hind foot fr.im below. 1 and 5, first and fifth digits. 



Fig. 6. Anal and genital area of adult female, a., anus ; gl., orifice of 

 perfume-jrland ; v., vulva. 



Fig. 7. The smie of immature female. 



Fig. 8. Anal and genital area of immature male. fl.,anus; s., one sac of 

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



XXXII. — On the Genera Eglisia, Callostiacum, ^[estilia, 

 Tmriiellop.sis, and Tachyrhynchus. By Edgar A. 

 Smith, l.S.O. 



Most of the species referred to in this paper have been 

 referred to Turritella, EgJisia, or Mesada, some rightly 

 located, others incorrectly. 



