178 20 



(mm by an animal, brown and gray substance which was not to be determined. — The 

 liver was reddish yellow. 



The hermaphrodite gland situated backwards on and in the liver, was, as to 

 colour, scarcely to be distinguished from the latter. The lobes of this gland were, at least 

 great part of them, differentiated as masculine and feminine ones. The hermaphrodite 

 duct was long, strong, and formed several windings; its fore part was much thinner. The 

 anterior genital mass was longish, with several constrictions; it projects below, as 

 often by the Bullacea , in a continuation of a length of 5'5 mm , which was flattened , and 

 through which ran a longitudinal furrow; at the hinder end the yellowish white albuminous 

 gland with quite fine gyri. Near the latter gland the globular seminal bladder of a 

 diameter of 3 - 5 mm opened by means of a rather short duct. The spermoviduct had the 

 common partition wall ; the strong vulvar papilla had a brownish aperture l )i The strong- 

 pen i s had a length of 9 mm ; at its compact upper end a strong retractor was attached; 

 the thick-walled prostata of a length of 6 - 5 mm empties by means of a not short duct 

 into the cavity of the praeputium, and not far from this duct the curved appendicular bag 

 of a length of 4 mm ; above in the praeputial cavity the glans Of a length of 2\5 mm projects 

 freely, and through it runs a strong longitudinal furrow 2 ). 



Philine, Asc. 

 Philine quadripartita, Ascan. 



Dr. Mortensen has in February and March 1900 obtained, on muddy bottom at a 

 depth of 5 fathoms to the north of Koh Kam, and on sandy bottom at a depth of 15 fa- 

 thoms to the west of Koh Kut in the Siam Sea, in all 21 specimens of a Philine, probably 

 identical with the typical one. 



The specimens had a length of 13 — 3'3 cm - Their colour was transparently milk- 

 white or yellowish white, with exceedingly fine white dots, and the intestines were to be 

 distinguished from without, quite as in the typical form. Also the form was the same, 

 only the hinder end of the foot-lobes was rather constantly somewhat produced backwards. 



The three largest (more exactly examined) specimens had a length of 3 and Z'i cm , 

 by a breadth of respectively 2 - 2 and 2 , 8 mm , and a height of 7 mm ; the length of the fore 

 shield was l - 4 and l-6 cm , that of the hinder shield I -6 and l-8 cm ; the foot-lobes had a 

 breadth of up to 1™, only loosened in the edge, the foot a length of 2 — 2 - 2 cm . — The 



') Comp. R. Bergh, malacolog. Unters. VI. 1902. Taf. XXVIII, Fig. 1. 

 2 ) Comp. 1. c. VI. 1902. PI. XXVIII, Fig. 2, 3. 



