336 70 



bogen gebildet sind, bietet die Fialularia (Aulostoma) chiiiénsis dar. Bei ihr hangen nur die 

 zu dem vordersten Bogen geliörigen Segmente, deren es 3 giebt, unter einander innig zusam- 

 men: von den 4 Segmenten aber, die einem jeden der 2 folgenden Bogen angehören, ist bei 

 Exemplaren dieses Fisches, die eine Länge von fast 1'/- Fuss haben, das dritte und äusserst 

 kleine von dem /.weiten und beträchllich grossen ungefähr um 3 bis 4 Linien nach ol)en hin 

 entfernt; und um eben so weit stehen audi die beiden Segmente von einander ab, die dem 

 vierten oder hintersten Kiemenbogen zugehören, und wovon das oberste dem vierten Segmente 

 der beiden davor liegenden Kiemenbogen entspricht. Die Lücke zwischen den angegebenen 

 Gliedern wird allein durch die Haut des Schlundes ausgefidlt." The elongated glossoliyal is 

 noticed on p. 4. On the other side the statement about the opercular apparatus being only 

 composed of 2 jjieces (1. c. p. 76) is wrong. Rathke's figure is copied by Brühl (6 a, Tab. IV, 

 fig. 11) and his statements referred to 1. c. p. 119; and also repeated by Duvernoy in Cuvier's 

 Leçons, T. Vil, p. 257, p. 2()8. This information seems to have been quite overlooked later. 

 The next author who mentions the branchial skeleton is Cope (8, p. 457) who (incorrectly) 

 states: "Superior branchihyals (= epibranchials) cartilage, three superior pharyngeals (= pha- 

 ryngobranchials)." 



'' p. 280 [14]. But little information regarding the visceral anatomy of the Aulostomidœ 

 or Fislularidu' is found in the literature. 



Already Duvernoy (in Cuvier's Leçons etc. 2. Ldit., 4th vol., 2, p. 143> pointed out that 

 in Cuvier's family "Les boiiches-en-flùte" the intestinal canal did not possess any stomachal 

 blind-sac; he adds: "Le canal alimentaire semble tout dune venue; à peine peut-on y recon- 

 naître une première partie distincte qui serait restomae." But Duvernoy seems only to have 

 examined (U'litriscus scolopax', not Fisiitlario nor Anlostoma (nor Amphisile). 



Of internal structures in Aulostoma Günther (16 a, p. 537) gives the following account: 

 "The stomach is spacious, elongate, with thin membranes, which become thicker towards 

 the pylorus; it ])asses without curvature or dilatation into the intestine, which is extremely 

 short, quite straight, without curve or circumvolution, and rather wider at its commencement 

 than posteriorly; two pyloric appendages of moderate size on each side of the pyloric por- 

 tion of the stomach. Air bladder large. " 



In the stomach G. found remains of small fish. (Lacêpede 31, T. 10, \). 101 mentions 

 fish-eggs and worms") Curiously enough neither Günther nor later authors mention the 

 position of the anal opening close behind the venlrals and far from the anal fin. 



The nund)er of gills, the presence of a iiseudobranchia and the slit behind the 4th gill- 

 arch are rightly mentioned by previous authors (Lacépède, Günther, Jordan etc.). 



Fistularia. 



7 p. 281 [15]. Minute dermal asperities in F'istularians are mentioned for the first time 

 by Klunzinger i27, p. 5]5\ In a very young specimen, 13 Ctm. long, from the Red Sea, which 

 he considered as representing a new sjjecies {Fisliilaria rillosa Klzgr.) he found the " Rumpf 

 dicht mit kurzen weichen Dörnchen oder Härchen überzogen." Later Hilgendorf (17, p.231) 

 observed the same asperities in two small specimens, one (V"'8 mm.) from Japan, another from 

 New Britain, and concluded that they as well as Klunzinger's F. villosa simply were young 

 stages of F. serrala Caw., "die im erwachsenen Zustande nackt ist.' Apparently without know- 

 ing Hilgendorfs observations LÜTKEN (33, p. 584 [176]) also declared that F. oillosa Klzg. must 

 be the young F. scrrota, to which he referred a specimen of 130 mm. length in the Museum 



* I very much regret in my first contribution (1908) to have completely overlooked that Cuvier's 

 Leçons, 1. c. p. 143, and especially p. 365, contain a complete description of the alimentarj' canal of 

 Centrisciis scolopax; inter alia it points out the entrance of the bile-duct, and concludes: "Ici, comme 

 dans les cyprins, l'œsophage et l'estomac réunis, sont rudimentaires." On p. 492 the liver is described, 

 p. 564 the gall-bladder mentioned, and p. 612, absence of the pancreas. 



