ILLUSTRATIONS. 



Plate 1. Philu'pink Tbepang. 

 I'ici. 1. The oe. 



2. The gan sim. i 



3. The bark sim. 



4. The nioi whar tlie. 

 •"). The hong che. 



Pr.ATio Tl. Dii'iEiiKNT \arietie^ of "Baek Sim." 

 (Third snide Philippine Trepang.) 

 Fig. 1. Small black trepang. 

 2. \Milte ringed trepang. 

 ■i. Yellowish brown trepan^. 

 4. Dark brown trepang, 

 .5. Convoluted trepang. 

 (i. Small convoluted tre]ian,i;. 



Platk IIT. PHILIPPI^'^, Sii akk-ki v. 



Fi(i. 1 Dried shark-fin prepared for export. 

 2. The fin prepared for soup. 



I'l.ATK IV. Three V.\kietii.;,s of Ska Ti rtlks. 



Flfi. 1. The loggerhead {Thalaf:sochely-i micl I'l Linn.i. 



2. Head of the lo,i.',i;erhead turtle. 



3. The hawksbill turtle {ChfJonp inihriiiiln Linn.i. 



4. Head of hawkabill turtle. 



'•>. The green turtle [CheJotu mi/d«.s' Linn. i. 

 • ;. Head of green turtle. 



I'l.AJl': \'. PlIILIPPl.NK 't'ORTdlM-.-SllKI.I.. 



Fig. 1. Plate from the hawk>bill turtle. 



2. Section showing thickness of tlic alio\r plate 



3. Plate from the green turtle. 



4. Section showing thickness of the green turtle shell. 



Plate VI. Comb.s Made ix M.vnila from Philtpplne Tmi roisE-Siinj.. 



Plate VJI. Piihippixe \'\'im)()W Shell. 



Fig. 1. Cross-section of shell near the adductor iriuscle showing actual width of 

 shell including the animal. 



2. Window sh.?ll. with growth of crustacean eg;^s near one margin. 



3. Window shell opened and with the mantle of left side removed slmwing 



the organs in place. 

 Plate VTII. Axatomy of the Wixdow-.shell .Moi.li sk. ./. iiantle: li. pallial 

 fringe; r-. gills; d. adductor muscle; '. li\'er; [. genital lobe: y. Indt-. 

 /(, anal funnel: i. labial paljis; j. vc^ntricle: /,-. auiiele; /. kiilney-. 



31 !l 



