i. Linn. 



This seems to be by far the commonest species in the part of the tropics explored bj 

 11 M s 'Siboga '. 11 was not only collected at numerous places during the cruise, ii was also 

 ■ ral times found attached to the ^liip itself after being cleaned in th<: doek of Surabaja. 



Th<- places and stations where the species was taken are 



• Labuan Tring Lombok), March 20, 1899. I in ■• specimens attai 



tn .1 • ■ wood. Surface. Anoth 1 smaller specimens with a barb 



na attached to a piece <>!" pumice-stone. 



Bril" iu.ii Macassar. No date. Very small specimens attached t<i Spirula, the 

 largi imen nas .1 capitulum <>f 6 mm. They belong t" the var. dilatata: 



scuta broad, carina barbed. 



110. July '. 1899. Lat. 4 }4 X.. I ' E.; South of Sulu Archipelago. Surface. 



Two specimens; length of the capitulum of the larger, 25 mm. 



;. Daram Island (East Coast of Misool), August 22, [899. Attached to a piece of 

 : . Small specimens <>f 6 mm. and smaller: var. dilatata. Associated with 

 L. fascicularis Ellis & Solander. 



Buton Strait, September 21, 1899. Surface. between Algae. Very small specimens attached t'> 

 rula. Var. dilatata with barbed carina. 



Stat. 214. October 27, 1899. Lat. 6° 30 X.. L<>ng. 1 2 1 ° 3 5 1". Surface, attached to Spirula. 



Very small specimens: var. dilatata. 

 Stat. 228. November 14. [899. Lat. 4 ^o S„ Long. 128° 30'. 5 K. Surface. Small speen 



attached to a species of Fuci. [The largest specimen lias a capitulum "f7.5 mm.]. 

 No place, no date. Attached to the keel of II. M. S. "Siboga". One specimen. Length of the 



capitulum 20 mm. 

 July 10. d t<> the keel of II. M. S. "Siboga", 4') days after having been docked 



in Surabaja. Si/e of largest specimen: capitulum 21 mm. The larger individuals 



are furnished with ovigerOUS lamellae. 

 • bcr 15. \ttached to the keel of H. M. S. "Siboga", 107 days after the ship was 



cleaned in the doek of Surabaja. Several specimens: length of the capitulum of 



the individual, 25 mm. 



Rein ark s. The specimens collected in the Bay of Lal man Tring (Lombok) caused me 



some dimculty as they differed from the usual appearance of L. anserifera in one of its most 



distinctive characters, viz. in the occludent margin of the scutum not being arched or protuberant. 



Further, the internal umbonal tooth of the right-hand scutum in these specimens is hardly stronger 



than that of the left-hand scutum. But as these characters vary even within the specimens ol 



this locality, the form of the scutum in some of them approaching more to the typical form 



than is the case in others; there existing, moreover, a close resemblance in other regards between 



this and the typical form, no doubt was left as to the importance of this difference. Several 



from this locality show the straight line of small quadritateral depressions ol a dirty 



ir in the scutum, running diagonally across the capitulum, which are very common 



in / Darwin 1. c. p. 7 erved a tracé of a diagonal line of such marks in a 



of /.. Hilli — but they have not been observed before in /.. anserifera, so 



