94 U.S. NATIONAL MUSEUM BULLETIN 234 



1931, Grimpe stated that there were a number of A. armata in the 

 Zoological Museum in Copenhagen and that they would be described 

 later. Unfortunately he died before the paper was written. 



In 1957 the author, through the kindness of Dr. Gunnar Thorson, 

 received the specimens of Abralia identified as armata by Grimpe; 

 after a thorough examination and comparison with the original 

 description and illustrations, he agrees with Grimpe as to their 

 identity. As a result, more detailed illustrations and the following 

 redescription are given to clear up this problem. As the description 

 indicates, this species is still a very perplexing one. 



Description. — This is a small species, now known from 11 speci- 

 mens, the type and the present collection from "Ostasien." The 

 mantle is rather short and conical, the anterior half with nearly 

 parallel sides, the posterior half cone-shaped. The antero-dorsal 

 margin is slightly produced in the midsection, ventrally it is emargi- 

 nated beneath the funnel and sharply produced at each side of the 

 funnel. In small specimens the posterior end is bluntly pointed, but 

 in the four large specimens it is produced into a slender point. 



The fins are short (FLI 21.0-65.4) and wide (FWI 85.0-100.0), 

 their anterior margins slightly convex, the posterior margins concave 

 and roundly pointed laterally. Posteriorly they are united to the 

 narrow point of the mantle. 



The head is rather narrow (HWI 29.5-42.6) and rounded, with large 

 but not prominent eyes. The eyelids are narrow and transversely open 

 with a small median anterior sinus. The dorsal windows are obscure, 

 perhaps due to the length of preservation, but the ventral windows are 

 large and clear, permitting a clear view of the eyeball light organs. 



The funnel is slender and tubular in the smaller specimens but 

 shorter and wider in the larger ones. The mantle locking apparatus 

 is simple, the funnel member a nearly straight groove slightly narrower 

 anteriorly, somewhat rounded and expanded posteriorly. The 

 mantle member is a straight narrow ridge. The funnel organ is well 

 developed, the dorsal member an inverted V-shape, with marginal 

 flaps anteriorly and with long arms; the ventral pads are narrowly 

 oval and nearly straight. 



The arms are long and slender with attenuated tips (MAI 61.3- 

 79.4), in the order 2.3.4.1. Arms I, II and IV are not keeled, III is 

 moderately keeled for most of its length. The greater part of each 

 arm bears hooks in two rows, 12 to 16 on I, 12 to 16 on II, 14 to 16 

 on III, and 15 to 20 on IV. Beyond the hooks are 6 to 12 moderately 

 large suckers, in two rows, with 4 to 6 teeth on the upper border and 

 entire on the bottom; beyond the larger suckers are two rows of 

 minute suckers reaching to the distal extermity. There are low 



