[ad. mod.L. teuthologia, irreg. (for *teuthidologia) f. Gr. τευθίς (-ιδο-ς) cuttle-fish, squid + -LOGY.] That branch of zoology which deals with cephalopods. Hence Teuthologist.
1886. Hoyle in Challenger Rep., XVI. 61. More explicit information would be very acceptable to teuthologists.
1891. Cent. Dict., Teuthology.