On Coleoptera of the Genus Azaieliiis. 315 



IIkinen. 1911. 'Die Nephtliydecn imd Lycoridoon der Nord- und 



Odtsee.' 

 IzuKA. 1912. ' The En-antiate Polychteta of Japan.' 

 Mai.mgrkn. 18G5. ' Nordiska IlalVAnimhvter.' Stockholm. 

 M'Intosu. 1874. Trails. Zool. Soc. vol. ix. part 7. " On Uritisli 



Annelida." 

 . 1885, 'Challenger' Reports, Zoology, vol. xii. "Annelida 



Tolychajta." 

 . 1SIU8. ' Monograph of British Annelida. — Polychoeta,' vol. ii. 



part i. 

 . 1910. 'Monograph of British Annelida. — Polychoetii,' vol. ii. 



part ii. 

 Watsox. 1903. Trans. Liverpool Biol. Soc. vol. xvii. " Observations 



on the Habits of the Onuphidid;e and on the Internal Structures 



VN'ith which they Fortify their Homes." 



EXPLANATION OF PLATE XVL 



Fiff. 1. Ovum and zona of Onuphis britannica. Zeiss obj. D, oc. 2. 

 Fiy. 2. Peculiar falcate bristle from first foot of young form of Ilyali- 



noccia tubicola. Enlarged. 

 JFSff. 3. Winged bristle from tenth foot oiHijaUncecid fiihicoUi. Enlargeil. 

 Fiy. 4. Posterior end of tube of Hyalbia'cia tuhicola, showing double 



V-shaped valve. Taken from young form. 

 Fig. 5. Diagram showing action of the protective valves, v', d", v'", at 



the posterior end of tube of Hyalincecia tubicola. Tlie arrow 



indicates the inrush of sea-water closing the valve. (After 



"Watson.) 

 Fiy. 6. Diagram showing position of the sam? valves when the worm 



emerges in the direction of the arrow. The valve-membrane 



bulges iu the opposite direction. (After Watson.) 



XXXVl. — Notes on Cohoptera of the Genus A/avelius, 

 Fairm, (TenebriouiJai), loith Descriptions of neiv Species. 

 By K. a. Blair. 



(Published by permission of the Trustees of the British Museum.) 



Azarelius tenuicornis, sp. n. 



Castaneous, subnitid; the antennse are rather slender, their 

 length about equal to that of the thorax together with twice 

 the length of the head ; joints 8-10 feebly transverse ; the 

 joints are obconical, feebly punctate, and witii few seta?. 

 The thorax lias the costse moderately prominent and con- 

 spicuously punctate ; the interstices very coarsely and closely 

 punctate. The elytral costge are punctate, as the thoracic 

 costa2, the fourth is very short, the rest all extending well on 

 to the declivity ; the seventh and eighth are united just 

 before the apex, and the sixth and second enclose the rather 

 shorter tilth and third. 



