APPENDIX. 467 



Amongst the fertilized pelagic eggs which would be welcomed 

 at St Andrews are those not described in this work, or only 

 briefly alluded to, such as the eggs of the sea-perch, the various 

 breams, greater weever, Spanish mackerel, spotted dragonet, 

 poutassou, pollack, Norway pout, hake, three-bearded rockling, 

 four-bearded rockling, tadpole-fish, halibut, various topknots, brill 

 and anchovy. 



Of other eggs both demersal (that is, occurring in masses or 

 singly on the bottom) and pelagic yet required for examination 

 are those of Murray's gurnard, tunny, maigre, hair-tail, Aphya, 

 Nilsson's goby, common sucker, the various blennies, Lumpenus, 

 deal-fish, oar-fish, sand-smelt, thick and thin-lipped grey mullets, 

 the wrasses, bearded ophidium, smooth sand-launce, Argyropelecus, 

 argentine, skipper, shads, trigger-fish, the sun-fishes, eel and conger. 

 The demersal eggs of such as the common wrasse would live for 

 several days amongst moist sea-weeds loosely put around them, if 

 the eyes of the embryos were coloured. The sea-weeds must not 

 be packed tightly around the eggs, else putrefaction will ensue. 

 Examples of eggs of any kind may be sent by post in a fresh 

 condition. 



Even though it were impossible to procure fertilized eggs, yet 

 the transmission, in sea-water, of the ripe eggs of any form not 

 described in this work would be valuable. In the same way the 

 transmission of a little ripe milt in a moist tube by post would also 

 aid in elucidating unknown life-histories of fishes. 



Where larval fishes are encountered a sketch and an explanatory 

 note should be made of their shape and colours. If conveniences 

 for following their growth are not at hand, they then, if living, may 

 be sent in earthenware jars partly filled with sea-water, or preserved 

 in strong spirit. Young fishes of all kinds should be transmitted 

 fresh, or killed with corrosive sublimate solution and placed in strong 

 alcohol, then put in a bottle, and the spirit changed within 24 hours. 

 Care should be taken not to place too many specimens in each bottle. 

 A fresh fish may be transmitted by post in time to have its colours 

 and general contour examined. 



